TECKNET Mini Wireless Doorbell, Battery Operated Doorbell with RGB Light, IP66 Waterproof USB Small Cordless Door Bells Chime Kit, 400M Wireless Range, 60 Chimes & 5 Level Volume

The USB port of the wireless door chime can also be folded by 90° to save space, making the receiver more compact and not blocking other sockets when using. It can be used not only on USB interfaces but also directly on desktop computers, laptops, power banks, and other devices, making it more convenient to carry around, even for outdoor use

This door bell offers 60 different melodies, allowing users to select their favorite based on their mood. With 5 volume levels ranging from 0dB to 100dB, it accommodates various occasions and user preferences. The mute mode feature of this wireless doorbell can be used during the night or in important meetings

This cordless door chime offers a remote connection of up to 400 meters/1300 feet in open spaces without interfering with nearby cordless devices. A robust and stable radio signal ensures that you never miss a visitor. Note: The transmitter is powered by CR2032 battery, while the receiver is powered by USB

The USB-powered receiver features an RGB light that flashes when the transmitter is activated or receives a signal. The high-decibel volume of 100 dB can alert individuals who are hearing impaired or elderly. You can mute the front door bells when a ringtone is not needed and rely on the RGB light for visual notifications

This battery operated doorbell is waterproof up to IP66 and designed to withstand extreme environments. It remains reliable even in harsh weather conditions, operating within a temperature range of -10℃ to 50℃. The easy install doorbells can be quickly attached to the wall using screws or adhesive pads