100 METERS WORKING DESTANCE: Long range (e.g You can have the receiver on the 3rd floor, though with the customizable volume you can adjust the volume to be heard on the third floor even if the receiver is on the first floor). The wireless doorbell is loud and clear, you can hear it in every room, even through cement walls reinforced with rebar. If you are either occupied in the garden or in the kitchen, it will alert you that you have visitors. No need to worry about missing any deliveries. 36 DIFFERENT MELODIES: The wireless remote control doorbell has 36 different chimes with adjustable volumes. Ringing volume ranges from 25-110dB, which include classic doorbell ding dongs, festive holiday songs, and much more. You can change the melody of your doorbell for every season, holidays, or special occasions; very fun to try them all. Simply press the music button to choose, control the volume via volume button on the receiver with ease. SUPER EASY TO INSTALL: Just plug the receiver into a wall outlet, install the push button with ready to use adhesive tab, and await your visitors. The transmitter is tested to ensure up to 10,000 times of press for daily use, eliminating needs of replacing battery frequently. Battery included. WATERPROOF & DURABLE: The Transmitter is waterproof, eliminate the fear of your doorbell getting damaged by severe weather. Made up from ABS, environmentally friendly, resistant to high and low temperature, corrosion resistance and durable. Perfect for outdoor use! SLEEK MODERN DESIGN & MULTI-USE: The perfect addition to your door to welcome visitors. The Wireless Bell can also be used as music alarm for your child or heavy sleepers, as an attention signal in classrooms, handy pager for the old and the pregnant in terms of timely care. Welcome Your Visitors with a MelodyAn attractive, well-made, and elegantly simple Wireless Doorbell with loud and clear soundsHelp make missing important deliveries, visitors, or clients a thing of the past when you install this functional and unique Wireless Doorbell. It installs quickly without the hassle of running any wires and the ringer includes an adhesive back designed for easy installation. Just attach the transmitter near your door and place the receiver anywhere in your home within 100 meters in an outlet. When the transmitter button is pressed, 1 of 36 pleasant melodies of your choosing will sound to notify you of your visitor's presence. This wireless doorbell with 36 different chimes will let you personalize the experience to suit your preferred style or ambiance. Featuring handy volume control and long working distance, the wireless doorbell kit is a must-have accessory for your home, office, or store.Package Includes:1 X Push button (transmitter)2 X Plug in chime (receiver)1 X BatterySelf Adhesive Backing