WOTZOV Wireless Doorbell, 3 Push Button And 1 Receivers,Waterproof Wall Plug-In Cordless Door Chime with Power-Off Memory Function,LED Flash,300M Range,58 Ringtones,4 Volume Levels,White,Black

UNIQUE DESIGN:1,Humanized power-off memory function design.2,Through different doorbell button signals,Make the receiver emit a variety of ringtones,Better identify visitor locations,makes sure that you will never miss any visitors.Can used as a wireless paging device when in need. 58 Ringtones & 4-LEVEL VOLUME:The doorbell Receivers features 58 music,4 adjustable volume levels from 25dB to 85dB to meet your needs on different occasions. LED indicator design alerts people with hearing loss or doorbell sound (temporary) disappearance. ULTRA-LONG WIRELESS RANGE:The wireless doorbell has a maximum receiving distance of 1,000 feet / 300 m(actual receiver signal depends on environment),but it will not interfere with other devices in your home or neighbors. WATERPROOF & DURABLE:The IP44 waterproof doorbell button works perfectly even in the worst weather conditions such as heavy rain, direct sunlight and frost.The doorbell material is extremely durable and can withstand more than 100,000 knocks. EASY TO INSTALL :Simply plug the receiver into a power outlet,Use the provided screws or adhesive patch to install the Doorbell Button in any location in an indoor, outdoor door frame or garden. Doorbell button uses a 12V, 23A battery (but not included).