Wireless Doorbell, NOVETE 1300ft Long Range Door Bells Chime, IP55 Waterproof Electric Cordless Doorbell - Sold by AVANTEK Direct

【ULTRA-LONG WIRELESS RANGE】This wireless doorbells boasts a remote connection of up to 400 M/1,312-FT and does not interfere with other equipment in your home
【52 MELODIOUS CHIMES】The receiver bell with 2 receivers features 52 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 & DURABLE】Ultra-low power consumption and CR2032 lithium battery gives a lifespan of up to 3 years; no need to worry about frequent battery replacement; IP55 waterproof rating to withstand the harshest weather (-4 °F to 140 °F)
【EASY TO SET UP】Simply plug the receiver into a power outlet and attach the transmitter to the exterior wall with the provided screws or adhesive patch; there is no need to reset tune and volume level after a power outage
【Expandable Doorbell System】If you have any quality problems, you can reach out to us for after-sales services; expand your existing doorbell system with up to 2 transmitters and unlimited receivers, build your own simple alert system