Wireless Doorbell Waterproof Door Bell with 38 Melodies To Choose Adjustable Volume

This Wireless USB Doorbell Features a professional waterproof design, can penetrate through 3-4 walls, with a range of up to 150 meters in open areas. It has 3-level volume adjustment and 38 music options for personalization. Ideal for use in villas, apartments, offices, shops, warehouses, and more.

Features: Wire-free, plug and play, easy to use. Can penetrate through 3-4 walls, with a range of up to 150 meters in open areas, strong and stable signal. 3-level volume adjustment and 38 music options for personalization, customizable to your preferences. Anti-interference and no false ringing, ensuring normal use. Professional waterproof design, suitable for various places.

Specifications: Colour: White Working voltage: 5V (USB powered)  Power consumption: less than 0.25W  Working frequency: 433.92  MHz Operating temperature: -10 degrees C~+45 degrees C  Controllable volume: more than 50dB/1m  Remote control distance: more than 150 meters (unobstructed open space)  Transmitter battery model: CR2032  Transmitter power consumption: less than 10mW  USB interface receiver size: 43*41*32mm / 1.7*1.6*1.3in Transmitter size: 77*45*16mm / 3*1.8*0.6in Package size: 13*11*5cm / 5.1*4.3*2in Package weight:  1 Receiver 1 Doorbell: 78g / 2.8oz 1 Receiver 2 Doorbell: 105g / 3.7oz

Package List: As you choose