?300M/1000ft Wireless Range?: Wireless doorbell Long operating range can reach 300M/1000ft, strong and stable wireless signal ensures that you can hear the doorbell chime clearly even if you are a few rooms away. And does not interfere with other equipment in your home. ?Waterproof Doorbell?: Wireless doorbell transmitter is raindrop-proof, which ensures perfect performance in outdoor environment. The doorbell can operate between -4°F and 140°F, withstands harsh weather conditions. ?3 Level Volume & 38 Ringtones?: Doorbell receiver has 3 adjustable volume levels from 0 to 110 dB. The options of 38 sound ringtones, from classic doorbell sound to rhythmic melodies for everyone. Blue LED lights, ideal for the elderly, hard of hearing or noisy environments. ?Easy to Install?: Simply plug the doorbell receiver into an outlet and attach the transmitter with the included accessories. You can install this bell in 5 minutes. There is no need to reset the setting and volume level after a power