•【Smart Wireless Doorbell with 58 Melodies and Memory Function】This intelligent doorbell features 58 selectable melodies and a memory function that retains your settings after a power outage, no need to set it up again. •【Long Range and Waterproof Design】With an impressive range of up to 300 meters in open areas, and the transmitter is built to withstand the elements, offering both waterproof and dustproof protection. •【Easy Pairing with Super Learning Code】The transmitter supports easy learning and pairing with receivers. You can match an unlimited number of receivers. •【Customizable Ring Tones for Multiple Buttons】Multiple buttons can be paired with one or more receivers, and each button can be assigned a unique ringtone for easy identification. •【Flashing Backlight for Enhanced Visibility】The backlight of the receiver flashes when someone presses the doorbell, ensuring visibility, especially useful for the elderly, the hearing-impaired, and pregnant women. •【Simple Installation and Convenient Power Supply】Simply plug the receiver into an electrical outlet, and use the included adhesive tape to attach the transmitter to your door. Specifications: • Receiver Voltage: 220V • Receive Distance: 300 meters (in an open area) • Music: 58 ringtones • Volume: 20-110db, 4 levels • Transmitter size: 77*46*20mm • Receiver size: 95*65*33mm •Transmitter battery: 60mAh, 12V (included) How To Pair Signals? • Pairing method: press and hold the music button on the receiver for about 5 seconds (the light is on), release the music button, then press the button immediately, the signal is successfully paired. How To Modify and Set Music? • Press and hold the music button of the receiver before plugging in the power socket. Plug in the power socket until the light of the receiver lights up, release the music button, press the music button to adjust to the favorite music ringtone, press and hold the music button again until the light is on, press the transmitter twice immediately and the music is locked successfully. Note: The button transmitter cannot be placed on an iron door because it will interfere with the signal. Package included: •1 x Doorbell Set •1 x Installation Kit