Top 10 Best Classroom Door Bell

WIRELESS DOORBELL KIT Includes everything you need for DIY installation 2 outdoor remote doorbell transmitters and 1 plug-in smart doorbell receiver, double sided tape, anchors, screws. An A23 battery is included and will last for up to 3 years.. EASY TO SETUP Our portable doorbell easily pairs and connects so you can make your wireless doorbell battery powered. Customize it by simply selecting frommore than 50 doorbell chime sounds. Has 4 volume settings, perfect for naptime or parties.. LONG RANGE Our patented technology uses the highest quality microchips and does not need wifi or bluetooth. The signal from the wireless bell ranges up to 1000 feet. Great for large homes, apartments, offices, and warehouses. U.S. Pat. No. D800005. SMART TECH Not only have we made the traditional door bell ringer wireless, but we made it smart too. It will remember your customized settings and has sleek, modern LED lights that illuminate and blink for guests to easily spot at night. Truly reliable and weather proof, will operate between temperatures of -4F to 140F.. VERSATILITY Our wireless doorbells work great for any occasion - apartment homes, townhomes, small businesses, warehouses, offices and condo properties can benefit. Whether you're using it outdoors for your front gates, back fences, or mailboxes or indoors for teachers seeking helpful classroom organization and management, there is always a good use for SadoTech.

GREAT FOR TEACHERS Classroom Management to avoid Yelling during class, with a waterproof transmitter button and removable neck lanyard.. NEED EXTRA ADD-ON BUTTONS, RECEIVERS or SENSORS... Get it here www.amazon.comsadotech. WANT to ADD CUSTOM TEXT or LOGO to your doorbell... Learn more www.amazon.comsadotech. LOOKING FOR BATTERY REPLACEMENTS or TAPE... Look here www.amazon.comsadotech. LISTEN TO THE RING CHIMES BEFORE YOU BUY - Just SCROLL DOWN below to the Specification Guide link and click to DOWNLOAD the PDF file..

WIRELESS DOORBELL KIT Includes everything you need for DIY installation 1 outdoor remote doorbell transmitters and 1 plug-in smart doorbell receiver, double sided tape, anchors, screws. An A23 battery is included and will last for up to 3 years.. EASY TO SETUP Our portable doorbell easily pairs and connects so you can make your wireless doorbell battery powered. Customize it by simply selecting frommore than 50 doorbell chime sounds. Has 4 volume settings, perfect for naptime or parties.. LONG RANGE Our patented technology uses the highest quality microchips and does not need wifi or bluetooth. The signal from the wireless bell ranges up to 1000 feet. Great for large homes, apartments, offices, and warehouses. U.S. Pat. No. D800005. SMART TECH Not only have we made the traditional door bell ringer wireless, but we made it smart too. It will remember your customized settings and has sleek, modern LED lights that illuminate and blink for guests to easily spot at night. Truly reliable and weather proof, will operate between temperatures of -4F to 140F.. VERSATILITY Our wireless doorbells work great for any occasion - apartment homes, townhomes, small businesses, warehouses, offices and condo properties can benefit. Whether you're using it outdoors for your front gates, back fences, or mailboxes or indoors for teachers seeking helpful classroom organization and management, there is always a good use for SadoTech.

PAIRS CONNECTS EASILY FOR quick, frustration-free installation anywhere in your home. WHILE OTHER doorbells wireless are DIFFICULT TO SET UP or DONT WORK CONSISTENTLY, door bells by SadoTech extend OVER 1000FT of RANGE in open areas are PROVEN TO WORK THROUGH DOORS WALLS. Great for large homes, apartments, offices warehouses. And with BATTERY LIFE of UP TO 3 YEARS, youll never miss a chime Use as door chime for business when entering or classroom doorbell for teachers. THIS WIRELESS DOORBELL KIT IS the perfect starter for any wireless door bell user. KIT CONTAINS 1 wireless doorbell transmitters and 1 plug in smart doorbell receiver, double sided mounting tape, anchors, screws and A23 BATTERY INCLUDED. Sleek, modern LED INDICATOR lights illuminate both transmitter receiver can be set at 4 VOLUME SETTINGS, from low for naptime to high during a party. Our extensive COLOR SELECTION means youll find the right door bell push button to suit your style.. BUILD THE ULTIMATE SMART door bell system With multiple wireless door bells you can CONFIGURE each door with A DIFFERENT CHIME or ringtone. KNOW EXACTLY WHICH DOOR your visitors are calling from. For homes or offices with multiple entry points, this is CONVENIENT TIME-SAVING. Youll soon wonder how you lived without it. And UNLIKE SOME OTHER doorbell wireless, this door bell by SadoTech is truly WATERPROOF WEATHERPROOF to -4F140F for a system that lasts for years to come.. OUR PATENT-PENDING SOUND CHIP holds the LARGEST SELECTION of classy, high-quality ding-dong chimes, NO TINNY, ANNOYING ringtones. With 52 TOTAL RINGTONES at 4 VOLUME LEVELS, youll feel good knowing our ring chime MEMORY CHIP STORES your chosen doorbell chime selections even when unplugged or turned off. LISTEN FOR YOURSELF Just SCROLL DOWN to the Technical Specs section below click the Specification Sheet link to DOWNLOAD the PDF. Open the PDF and play all 52 ringtones.. AT SADOTECH, OUR GOAL IS to provide INNOVATIVE, HIGH-QUALITY PRODUCTS at a price everyone can afford. QUALITY IS KEY We love that our products bring ADDED SECURITY, CONTROL peace of mind to you, our customers. NEED SPARE BATTERIES, extra add-on buttons, receivers, sensors or a CUSTOMIZED DOORBELL button Visit our store www.amazon.comsadotech. If, for any reason, you dont love your wireless doorbells by SadoTech, reach out and WE WILL MAKE IT RIGHT..

Quick And Simple The installation requires no tools or electrical expertise The setup for this battery operated door bell is easy and convenient while contributing a stylish accent to the face of any home. Sound Library Do not commit to one single sound every time the door rings This wireless doorbell chime is not bound to any one sound Containing a library of 17 music tones and 35 chimes You have the choice to pick one you like or change it any time you wish. Not Only Doorbell The chime has a strong and unique sound An ideal instrument to be used by the hearing impaired It can be utilized as a classroom doorbell for teachers or as a call button to communicate throughout the house. A New Age For Doorbells Looking for a security system Maybe some motion detectors or a window alarm Know that the set can be customized with add ons such as pet doorbells and additional receivers. Housewarming Gift For Home Did a friend just rent a new apartment or is a coworker buying a house These wireless doorbells for home would make a terrific addition to their.

PAIRS CONNECTS EASILY FOR quick, frustration-free installation anywhere in your home. WHILE OTHER doorbells wireless are DIFFICULT TO SET UP or DONT WORK CONSISTENTLY, door bells by SadoTech extend OVER 1000FT of RANGE in open areas are PROVEN TO WORK THROUGH DOORS WALLS. Great for large homes, apartments, offices warehouses. And with BATTERY LIFE of UP TO 3 YEARS, youll never miss a chime Use as door chime for business when entering or classroom doorbell for teachers. THIS WIRELESS DOORBELL KIT IS the perfect starter for any wireless door bell user. KIT CONTAINS 2 wireless doorbell transmitters and 2 plug in smart doorbell receiver, double sided mounting tape, anchors, screws and A23 BATTERY INCLUDED. Sleek, modern LED INDICATOR lights illuminate both transmitter receiver can be set at 4 VOLUME SETTINGS, from low for naptime to high during a party. Our extensive COLOR SELECTION means youll find the right door bell push button to suit your style.. BUILD THE ULTIMATE SMART door bell system With multiple wireless door bells you can CONFIGURE each door with A DIFFERENT CHIME or ringtone. KNOW EXACTLY WHICH DOOR your visitors are calling from. For homes or offices with multiple entry points, this is CONVENIENT TIME-SAVING. Youll soon wonder how you lived without it. And UNLIKE SOME OTHER doorbell wireless, this door bell by SadoTech is truly WATERPROOF WEATHERPROOF to -4F140F for a system that lasts for years to come.. OUR PATENT-PENDING SOUND CHIP holds the LARGEST SELECTION of classy, high-quality ding-dong chimes, NO TINNY, ANNOYING ringtones. With 52 TOTAL RINGTONES at 4 VOLUME LEVELS, youll feel good knowing our ring chime MEMORY CHIP STORES your chosen doorbell chime selections even when unplugged or turned off. LISTEN FOR YOURSELF Just SCROLL DOWN to the Technical Specs section below click the Specification Sheet link to DOWNLOAD the PDF. Open the PDF and play all ringtones.. AT SADOTECH, OUR GOAL IS to provide INNOVATIVE, HIGH-QUALITY PRODUCTS at a price everyone can afford. QUALITY IS KEY We love that our products bring ADDED SECURITY, CONTROL peace of mind to you, our customers. NEED SPARE BATTERIES, extra add-on buttons, receivers, sensors or a CUSTOMIZED DOORBELL button Visit our store www.amazon.comsadotech. If, for any reason, you dont love your wireless doorbells by SadoTech, reach out and WE WILL MAKE IT RIGHT..

PAIRS CONNECTS EASILY FOR quick, frustration-free installation anywhere in your home. WHILE OTHER doorbells wireless are DIFFICULT TO SET UP or DONT WORK CONSISTENTLY, door bells by SadoTech extend OVER 1000FT of RANGE in open areas are PROVEN TO WORK THROUGH DOORS WALLS. Great for large homes, apartments, offices warehouses. And with BATTERY LIFE of UP TO 3 YEARS, youll never miss a chime Use as door chime for business when entering or classroom doorbell for teachers. THIS WIRELESS DOORBELL KIT IS the perfect starter for any wireless door bell user. KIT CONTAINS 1 wireless doorbell transmitters and 2 plug in smart doorbell receiver, double sided mounting tape, anchors, screws and A23 BATTERY INCLUDED. Sleek, modern LED INDICATOR lights illuminate both transmitter receiver can be set at 4 VOLUME SETTINGS, from low for naptime to high during a party. Our extensive COLOR SELECTION means youll find the right door bell push button to suit your style.. BUILD THE ULTIMATE SMART door bell system With multiple wireless door bells you can CONFIGURE each door with A DIFFERENT CHIME or ringtone. KNOW EXACTLY WHICH DOOR your visitors are calling from. For homes or offices with multiple entry points, this is CONVENIENT TIME-SAVING. Youll soon wonder how you lived without it. And UNLIKE SOME OTHER doorbell wireless, this door bell by SadoTech is truly WATERPROOF WEATHERPROOF to -4F140F for a system that lasts for years to come.. OUR PATENT-PENDING SOUND CHIP holds the LARGEST SELECTION of classy, high-quality ding-dong chimes, NO TINNY, ANNOYING ringtones. With 52 TOTAL RINGTONES at 4 VOLUME LEVELS, youll feel good knowing our ring chime MEMORY CHIP STORES your chosen doorbell chime selections even when unplugged or turned off. LISTEN FOR YOURSELF Just SCROLL DOWN to the Technical Specs section below click the Specification Sheet link to DOWNLOAD the PDF. Open the PDF and play all 52 ringtones.. AT SADOTECH, OUR GOAL IS to provide INNOVATIVE, HIGH-QUALITY PRODUCTS at a price everyone can afford. QUALITY IS KEY We love that our products bring ADDED SECURITY, CONTROL peace of mind to you, our customers. NEED SPARE BATTERIES, extra add-on buttons, receivers, sensors or a CUSTOMIZED DOORBELL button Visit our store www.amazon.comsadotech. If, for any reason, you dont love your wireless doorbells by SadoTech, reach out and WE WILL MAKE IT RIGHT..

EASY TO INSTALL - The wall-mountable SadoTech wireless doorbell kit includes 1 receiver, 1 transmitter, adhesive stickers, and CR2032 battery inside transmitter. It is more convenient to use than of a wired bell for door.. LONG DISTANCE RANGE - The wireless door bells for homes reaches over 500 ft and can penetrate walls and doors. Expand the reach of each wireless door bell by pairing up multiple receivers with just one doorbell button or with door sensor.. CUSTOMIZABLE - This doorbell chime colorful LED indicator, 32 ring doorbell chime and ringtones options, and 5 volume levels including mute with light. Different tones can also be set to different transmitters.. MULTIPURPOSE - Door chimes aren't just for receiving home visitors, it can also be used to as a door ringer for business, an alert system for in-patient care, as door alarms for kids safety or as a driveway alarms wireless outside your place.. WATERPROOF - With a waterproof door bell push button, you can be at ease with placing them on indoor or outdoor areas such as front door, dog doors for exterior doors or on the windows..

WIRELESS DOORBELL KIT Includes everything you need for DIY installation 1 outdoor remote doorbell transmitters and 1 plug-in smart doorbell receiver, double sided tape, anchors, screws. An A23 battery is included and will last for up to 3 years.. EASY TO SETUP Our portable doorbell easily pairs and connects so you can make your wireless doorbell battery powered. Customize it by simply selecting frommore than 50 doorbell chime sounds. Has 4 volume settings, perfect for naptime or parties.. LONG RANGE Our patented technology uses the highest quality microchips and does not need wifi or bluetooth. The signal from the wireless bell ranges up to 1000 feet. Great for large homes, apartments, offices, and warehouses. U.S. Pat. No. D800005. SMART TECH Not only have we made the traditional door bell ringer wireless, but we made it smart too. It will remember your customized settings and has sleek, modern LED lights that illuminate and blink for guests to easily spot at night. Truly reliable and weather proof, will operate between temperatures of -4F to 140F.. VERSATILITY Our wireless doorbells work great for any occasion - apartment homes, townhomes, small businesses, warehouses, offices and condo properties can benefit. Whether you're using it outdoors for your front gates, back fences, or mailboxes or indoors for teachers seeking helpful classroom organization and management, there is always a good use for SadoTech.

ASSIGN A DIFFERENT RINGTONE TO EACH BUTTON. RECOMMENDED FOR TEACHERS Looking for classroom learning resources These are must-have school supplies for teachers for classroom that will help avoid yelling during class. It comes with with variety of colorful, vibrant push buttons. These teacher supplies for classroom are great for classroom organization.. CONDUCT FUN CLASS QUIZ CONTESTS This easy to install wireless doorbell for classroom device is used for fun educational games to organize class activities from kindergarten games to math games for first grade.. LISTEN TO THE RING CHIMES BEFORE YOU BUY - Just SCROLL DOWN below to the Specification Guide link and click to DOWNLOAD the PDF file. Open the PDF and play all 52 ringtones..

WIRELESS DOORBELL KIT Includes everything you need for DIY installation 1 outdoor remote doorbell transmitters and 1 plug-in smart doorbell receiver, double sided tape, anchors, screws. An A23 battery is included and will last for up to 3 years.. EASY TO SETUP Our portable doorbell easily pairs and connects so you can make your wireless doorbell battery powered. Customize it by simply selecting frommore than 50 doorbell chime sounds. Has 4 volume settings, perfect for naptime or parties.. LONG RANGE Our patented technology uses the highest quality microchips and does not need wifi or bluetooth. The signal from the wireless bell ranges up to 1000 feet. Great for large homes, apartments, offices, and warehouses. U.S. Pat. No. D800005. SMART TECH Not only have we made the traditional door bell ringer wireless, but we made it smart too. It will remember your customized settings and has sleek, modern LED lights that illuminate and blink for guests to easily spot at night. Truly reliable and weather proof, will operate between temperatures of -4F to 140F.. VERSATILITY Our wireless doorbells work great for any occasion - apartment homes, townhomes, small businesses, warehouses, offices and condo properties can benefit. Whether you're using it outdoors for your front gates, back fences, or mailboxes or indoors for teachers seeking helpful classroom organization and management, there is always a good use for SadoTech.

Long Range - Operating range up to 1,000ft300m in open area when there are no obstructions, ensures you to hear the bell and answer the door in time.. Waterproof Dustproof - Waterproof rating ensures the rain day usage perfectly. Sleek flat panel makes cleaning dust a piece of cake. Just rest assured to put it outside for convenience.. 36 Different Ringtones Adjustable Volume - The doorbell features 36 chimes and 4 level adjustable levels 25db to 85db to suit your needs. Flashing light with audio alert indicators which is easy for people including the hearing impaired to notice.. Easy to Install Use - Easily plug receiver into an electrical outlet no batteries required for main receiver. The push button can be fixed to the doorframe with the attached adhesive tapes. Simply mount the doorbell where needed and you are ready to go.. Multi Use - It is fit for home, apartment, office, villas and more. You can use our doorbells to train dogs, using it to quiet down classrooms, seniors and disabled use doorbells as assisted living call pagers Ensures that you will not miss any visitors, you can hear the sound even from back garden..

Work Out of Box This wireless doorbells for home has been paired before delivery. There is no need for wiring or electrician installation when using it since its installation can be completed within 1 minutes plug the receiver into the socket, ready to go.. Long Distance This high-frequency electronic technology wireless remote control doorbell adopts the FM signal scheme, which has strong anti-interference features and one-to-one signal pairing. No need to worry about signal connecting wrongly with the next door. And the sensing distance can reach up to 1000Ft in obstacle-free environment.. Lead A Convenient Life The doorbell has been updated with 58 songs including merry christmas ringtone and 5 levels of volume that can be adjusted. You can be add as required, choose 2 button with 1 receiver or 1 button with 2 receivers or 2 buttons with 3 receiver sets, etc.. Weather Resistance Energy-saying The door bell is made of high-quality ABS material, showing high performance in fire and flame resistance. working temperature-4 F -140 F. IP55 dust proof and waterproof protection. The receiver adopts an optimized circuit design. The transmitter does not consume power without being pressed. Battery life3 years.. Exquisite Appearance High Quality The door bell ringer demonstrates subtle and novel industrial aesthetics and fashionable design. We have industry-leading automation equipment, high-precision placement. We strictly control the product quality. In case of malfunctions, please contact us as soon as possible for resolutions..

ADVANCED TRANSCEIVER TECHNOLOGYThis doorbell uses microchip with advanced wireless transceiver technology for stable and reliable. When pressing the button, the doorbell will immediately receive the signal and make a sweet melody.. 32 RINGTONES, 4 VOLUMESThe receiver has 4 adjustable volume and 32 melodies for different needs. LED flashes when someone presses the doorbell, convenient for the deaf, pregnant women and the elderly.. HIGH PERFORMANCEMade of superior plastic which can withstand high temperatures and interference. Its waterproof and dustproof feature make it suitable for indoor and outdoor use. The battery-operated doorbell button also has an extremely low power consumption, ensures an unparalleled long lifespan.. EASY TO USE Simply plug the receiver into the socket and insert the supplied battery into the bell button then fix on the wall or door frame with the supplied adhesive tape. It will not interfere other devices.. WIDELY APPLICATIONUp to 500ft 150m long range, great for large houses including villas, apartments, offices, shops, warehouses, etc. Note the receiver can learn up to 30 transmitters 433MHz but the doorbell button only works with the receiver..

Easy to InstallJust plug the mini receiver into a socket and fix the transmitter on a wall with the accessories provided Includes 2 screws, 2 anchors, a battery, a double-sided tape, and even a screwdriver. Will not interfere with other equipment in your home or those of your neighbors, ensures you will never miss a visitor. This wireless doorbell set is by far the most convenient choice for your home and business.. Waterproof Robust Push ButtonA stylish modern design in classic white, excellent materials keeps itself from getting higher temperature interference. Waterproof Dustproof, remote transmitter button is rated IP44 weatherproof. Works between -22 F to 158 F withstand various harsh weather conditions, acceptable for outdoor use. Our door bells are certified with CE, RoHS, FCC.. Ultra Long Operating RangeOperating range up to 1000ft 300m in the open area, ensures you to hear and answer the doorbell in time. Either you are occupied a few rooms away or on another floor, in the garden or kitchen, you will always be easily informed when someone is calling from outside, never worry about missing visitors.. Widely Applied 38 RingtonesA perfect wireless doorbell kit for home, apartment, school, villas, office, warehouses, hotel, factory, hospital and more. There are 38 different ring tones with 4 levels of adjustable volume from 25db to 85db. The stereo speaker delivers rich and crisp sound, easily choose and set your favorite tones as you wish Flashing light indicators which are easy for people including the hearing impaired to notice.. WarrantyOur BO YING wireless doorbell enjoys the 5-year warranty and friendly customer service. We stand behind all of our high quality products and each is backed by the strongest Manufacturer Support. If you have any issues with our Wireless Doorbell, we're here to make things right..

Portable Design Versatile Use The wireless doorbell does not necessitate WiFi or power sockets. The receiver and transmitter can be positioned at your convenience and utilized as a pager. The receiver may be situated on a tabletop or kept in your bag as you prefer. Whether you're in the cellar, the garage, or the garden, you'll always be aware of your visitors.. 36-Month Long Battery LifeThis wireless doorbell comes equipped with a sleep function. After a few minutes of non-activity, the door chime kit enters sleep mode. Press any button to awaken the receiver. The receiver operates on 3 AA batteries not provided and can last for up to 36 months of daily usage, reducing the need for frequent battery replacements. RGB Light Indicator Cordless DoorbellThe RGB light indicator on the battery-powered receiver flashes upon transmitter activation and receipt of a signal. The high-decibel 110 dB volume can alert those who are hearing impaired or elderly. You can silence the front door bell when no ringtone is needed and rely on the RGB light to visually notify you when someone is at the door.. 60 Melodies, 5 Volume Levels Memory FunctionThis outdoor waterproof wireless doorbell offers 60 selectable melodies, 5 adjustable volume levels ranging from 0dB to 110dB, and a silent mode to cater to your preferences. The memory function ensures that the cordless doorbell kit recalls the last chosen melody and volume setting, even in the event of a power outage.. 1300feet Cordless RangeThe TECKNET wireless doorbell boasts a working range of up to 1300feet in open spaces without disrupting other nearby cordless devices. A robust and stable radio signal ensures you'll never miss a visitor. Note The provided transmitter contains batteries, whereas the receiver does not Requires 3 AA batteries.. IP66 Waterproof DustproofThe wireless doorbell flaunts a stylish contemporary design, with superb materials that shield the doorbell push button from elevated temperatures and interference. The battery-operated front doorbell is waterproof up to IP66 and robust enough to withstand extreme environments. It maintains a wireless transmitter in wet weather conditions and operates in diverse climates from -4F to 140F.. Life Time SupportShould you experience any issues whilst using the product, don't hesitate to reach out to our professional customer support team, and take advantage of TECKNET's 36-Month Warranty Registration Required..

ULTRA LONG WIRELESS RANGEOperating at 1300ft range open area, the wireless doorbell kit in ensures you will never miss any visitor, even if you are a few rooms away or on another floor the wireless doorbell kit includes push buttons and plug-in receivers, and the transmitter will not interfere with other appliances in your home or those of your neighbors. 58 MELODIOUS CHIMESThe receiver door bell with 2 Push Buttons 1 Receiver features 58 tunes and 5 adjustable volume levels ranging from 0 to 115 dB an LED indicator alerts those with impaired hearing or when the doorbell sound is temporarily unwanted. WEATHERPROOF DURABLEUltra-low power consumption and CR2016 lithium battery gives a lifespan of up to 2 years no need to worry about frequent battery replacement IP55 waterproof rating to withstand the harshest weather -5 F to 158 F. EASY INSTALLATION MULTIPLE PURPOSESimply plug the receiver into a power outlet and attach the transmitter to the exterior wall with the provided screws or adhesive patch Multiple use for home, office, garage, store, office, apartments, villas, garden, hospital, school the disabled people etc.. HIGH PERFORMANCE SERVICEOur wireless doorbells for home is approved by CE, FCC and RoHS. High performance transmitter with ultra-low power consumption. If you have any quality problems, you can reach out to us for after-sales service..

LONG WIRELESS RANGE Wireless doorbell, wireless range up to 1000ft300m in open space. Penetrates steel doors, exterior walls and interior walls, no new wiring required for implementation. Ensures you will never miss a visitor, even if you are occupied in the garden or kitchen.CE,FCC,RoHS certified.. EASY TO SET UP The plugin doorbell wireless, without the hassle of cables. Simply plug the receiver into a power outlet and mount the transmitter including battery to the exterior walldoorframe with the provided screws or adhesive patch. There is no need to reset tune and volume level after a power outage.. HIGH-PERFORMANCE TRANSMITTER Ultra-low power consumption and 12V23A replacement battery for a push button that boasts 36-month maximum lifespan no need to worry about frequent battery replacement.IP44 dustproof and waterproof rating to withstand the harshest weather. It's a learning system, so you can DIY to meet your requirement by pairing additional receivers and push buttons. For example, pairing a receiver and two buttons to set different tones can help you distinguish front and back door.. 38 MELODIOUS CHIMES Door Chimes with a custom music chip that includes carefully selected. There are 38 different ringtones that you can easily select by pressing the music button on the receiver and make your life more colorful.4 adjustable volume from 25dB to 85dB and a flashing for the elderly and the hearing impaired.Just go through the pairing process and it keeps the ringtone you changed to.. WIDELY APPLIED and WARRANTY Wireless doorbells for home, office, warehouses, hotel, factory, hospital and so on. Every product enjoys a 12-month worry-free guarantee 60 days money back Guarantee. Please let us know if there are any problems and we will try our best to meet your satisfaction.