【White Wireless Doorbell Kit】This white wireless doorbell kit has a simple and elegant design, the wireless connection range can reach 150 meters or more; Wireless doorbell with 2 plug-in receivers, power supply: AC100V - 230V; 【Rich and Beautiful Ringtone】The sound from the ringtone receiver is full and clear; 38 ringtones, 4 volume settings, can be set to silent, volume ≥ 50db; Every time someone rings the doorbell, they can enjoy wonderful ringtones; 【IP44 Waterproof】Made of special waterproof material, can also be used on rainy days; 【Memory Function】The wireless doorbell kit remembers the last melody and volume level after a power outage; no reset required; Designed for particularly convenient and easy use for even more comfort; 【Easy to Install】Just insert the doorbell receiver into the socket, then attach the doorbell button to the outer wall or door frame with the included screws or tape;