Campainha sem fio com 48 músicas, ideal para casa inteligente, à prova d'água, com LED piscante e 4 níveis de volume ajustáveis.

Description： It can be used as a doorbell or as an SOS calling machine.Elderly people and pregnant women can carry it with them and ask for help at any time in danger.Touch to trigger, just press to trigger.The buttons are waterproof, so don't worry about long-term use.The open-air remote control distance can reach 150m, and the working range is extremely long.Meet the needs of most residential and high-rise buildings.Easy to install with double-sided tape or screws.The working range in open areas can reach 500 feet / 150 m.It can ensure that you hear and answer the doorbell in time, and you will never miss a visitor. Specifications： Product name: wireless doorbell Music: 48 songs Receiver power :CR2032 Button battery, More than 5 years Battery Life Receiver working voltage: 80v-275v Remote control distance: 150M (in an open environment) Waterproof rating: IP44 waterproof) Operating ambient temperature：Receiver ：-20-70℃ Doorbell button：-40-70℃ Plug: European standard/American standard Volume adjustment: high/medium/low/mute 85-97dB Receiver working voltage: 80v-275v Installation method: use double-sided tape or screws for easy installation. Support Expandable Already paired before factory and different transmitters can be set to different tunes. Expandable up to 20 accessories Volume adjustable Different volume can be applied to different scenes. There are 5 volume adjustments and mute mode can be set. 48 Ringtones and 5 Adjustable Volumes The wireless doorbell offers a wide selection of 48 melodies and 4 volume levels to meet your needs for different occasions. Flashing light with audio alert indicators which is easy for people including the hearing impaired to notice. Easy to install Just plug the receiver into power socket and attach the transmitter on door,you don`t even necessarily have to make holes or damage anything IP44 dustproof and waterproof Works between -20℃ to 70℃; withstands various harsh weather conditions Ultra Long Operating Range Operating range up to 500ft / 150m in open area, ensures you to hear and answer the doorbell in time. You will never miss a visitor even if you are a few rooms away or on another floor