【HIGH PERFORMANCE 】Our AVANTEK wireless doorbell is approved by CE, FCC and RoHS. High performance transmitter with ultra-low power consumption, uses a CR2032 lithium battery that boasts 3-year maximum lifespan 【RESILIENT TRANSMITTER】Thanks to the IP55 waterproof rating, the transmitter braves even the harshest weather conditions like rainstorms, direct sun exposure and frost; enjoy the freedom to install it anywhere inside, on your doorframe outside or in your garden 【300 M ULTRA LONG WIRELESS RANGE】Operating at 300 m range, the wireless doorbell plug 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 1 plug-in receiver and 1 transmitter, and the transmitter will not interfere with other appliances in your home or those of your neighbors 【52 CHIMES】Delivers rich and crisp sound thanks to the 29 mm stereo speaker; provides 5 adjustable volume levels with a maximum setting of 115 dB; simply press the Next or Previous button to choose a suitable chime from 52 melodies for any situation; eye-catching LED flashes that can alert those with impaired hearing or when the waterproof doorbell sound is temporarily unwanted 【SIMPLE SET-UP】Just plug the mini receiver into a socket and fix the transmitter on a wall with the accessories provided; includes 2 screws, 2 anchor plugs, a key and double-sided adhesive tape, Manufacturer: AVANTEK