USB Wireless Doorbell Smart Welcome Door Bell Three-speed volume 38 Songs Melodies Doorbell For Home Bed Call Emergent Call

New Wireless Doorbell Home Intelligent Welcome Doorbell Waterproof Remote USB Plug Easy to Install No Wiring Required Doorbell
【3-speed volume】3-speed volume can be adjusted, and the sound volume can be determined at will.
【One to many, many to one】The host can be equipped with multiple buttons, and one button can add multiple hosts.
【Wireless Connection 】:No need for complicated wiring, the doorbell connects wirelessly to your home security system.
【38 Ringtones】 :Choose from 38 different songs to play when the doorbell is rung, adding a personal touch to your home security.
【Waterproof Design】 :The doorbell is designed to withstand harsh weather conditions, ensuring it remains functional even in rainy seasons.
【Intelligent Doorbell】 :The doorbell is equipped with intelligent features that enable it to distinguish between genuine visitors and unwanted intruders.
Specifications:
1. Working voltage: 5V(USB power supply)
2. power consumption: < 0.25W
3. Working frequency: 433.92 MHZ
4. Working temperature:-10 C ~+45 C.
5. controllable volume: > 50dB/1m
6. Remote control distance: > 150m (no obstacle in open space)
7.USB interface receiver size: L43xW41xH32mm.
8. Transmitter battery model: CR2032
9: transmission power consumption: < 10mW
10. transmitter size: l77xw45xh16 mm.