TECKNET Wireless Doorbell with 2 Portable Receiver, RGB Light Door Bell Battery Powered IP66 Waterproof Door Chime Kit, 1300ft Wireless Range, 60 Chimes & 5 Level Volume, Using Time up to 4.5 Years

Portable Design & Versatile Use: The wireless doorbell does not necessitate WiFi or power sockets. The receiver and transmitter can be positioned at your convenience and utilized as a pager. The receiver may be situated on a tabletop or kept in your bag as you prefer. Whether you’re in the cellar, the garage, or the garden, you’ll always be aware of your visitors.
36-Month Long Battery Life: This wireless doorbell comes equipped with a sleep function. After a few minutes of non-activity, the door chime kit enters sleep mode. Press any button to awaken the receiver. The receiver operates on 3 AA batteries (not provided) and can last for up to 36 months of daily usage, reducing the need for frequent battery replacements!
RGB Light Indicator Cordless Doorbell: The RGB light indicator on the battery-powered receiver flashes upon transmitter activation and receipt of a signal. The high-decibel 110 dB volume can alert those who are hearing impaired or elderly. You can silence the front door bell when no ringtone is needed and rely on the RGB light to visually notify you when someone is at the door.
60 Melodies, 5 Volume Levels & Memory Function: This outdoor waterproof wireless doorbell offers 60 selectable melodies, 5 adjustable volume levels ranging from 0dB to 110dB, and a silent mode to cater to your preferences. The memory function ensures that the cordless doorbell kit recalls the last chosen melody and volume setting, even in the event of a power outage.
1300feet Cordless Range: The TECKNET wireless doorbell boasts a working range of up to 1300feet in open spaces without disrupting other nearby cordless devices. A robust and stable radio signal ensures you’ll never miss a visitor. Note: The provided transmitter contains batteries, whereas the receiver does not (Requires 3 AA batteries).