Wireless Doorbell, 2 Plug-in Receivers+2 Transmitters, Battery Included, 1300ft Strong Signal, 58Chimes, 4Volume, 0-115dB, Bright LED Flash, Waterproof, Stable at -22~158℉, Easy to Use, Silver

Key features

• High Quality, Long-distance Transmission: FCC, CE, and RoHS certificated, stable, powerful and digital signal, 1300 feet long-distance transmission without any other radio waves’ interference, higher obstacles penetration, up to 5 walls. 24*7hrs online service, 3-Year Warranty for product’s defects.
• LED Flash: LED indicator in the transmitters and receivers respectively, very useful for people with hearing impairment or people who want to keep the environment quiet, especially for mothers with babies, to remind someone’s coming.
• 58 Ringtones, 4 Level Sounds: 58 ringtones with 4 level adjustable sounds from 0dB to 115dB, the default ringtone is "Dingdong", including a variety of music styles, such as "Welcome Greetings", "Piano Symphony", " Church bells" etc. It’s easy to set up and adjust, just press and hold your finger to release it until the desired ringtone or volume is selected.
• Efficient and Longtime Power Supply: The transmitter has been installed a 23A alkaline 12V battery with lifetime up to 3 years. The receiver is protruding plug-in with working voltage AC 110 to 220V, lower power consumption, and its annual electricity bill does not exceed 1 USD.
• Widely Used, 5 Minutes Installation: Waterproof IP55, the doorbell can be used in various occasions, such as home, office, home care centers, shops, etc., it can work normally at temperatures from minus 22F to 158F, withstand a variety of severe weather, such as freezing, storms, scorching, etc., 5 Minutes Installation with a sticky pad or screws.