【Portable Design and Versatile Use】: The cordless 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 cordless 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 cordless doorbell offers 60 selectable melodies, 5 adjustable volume levels ranging from 0 dB to 110 dB, 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 【400 Meter Cordless Range】: The TECKNET cordless doorbell boasts a working range of up to 400 meters 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) 【IP66 Waterproof & Dustproof】: The cordless doorbell flaunts a stylish contemporary design, with superb materials that shield the doorbell push button from elevated temperatures and interference. The battery-operated front doorbell is waterproof up to IP66 and robust enough to withstand extreme environments. It maintains a cordless transmitter in wet weather conditions and operates in diverse climates from -20 ℃ to 60 ℃ 【 36-Month No Worries Guarantee】: Should you experience any issues whilst using the product, don't hesitate to reach out to our professional customer support team, and take advantage of TECKNET's 36-Month Warranty (Registration Required), Manufacturer: TECKNET