General description The YMYNY Wireless Outdoor Doorbell is a reliable and versatile doorbell system designed for various environments, including apartments, commercial areas, office buildings, hospitals, restaurants, and factories. With a range of up to 300 meters and a waterproof design rated IP44, this doorbell ensures you never miss a visitor, even in challenging weather conditions. Technical specifications Model: A10 Range: 300 meters Music selection: 60 songs (default: Ding Dong Ding Dong) Volume adjustment: 5 levels Power voltage: AC 100-240V for the receiver Transmitter battery: 12V-23A Transmitter dimensions: 75 x 51 x 20 mm Receiver dimensions: 95 x 65 x 24 mm Installation Peel off one side of the double-sided tape and stick it on the bottom of the transmitter. Peel off the other side of the double-sided tape and stick it on the wall outside the door. Press and hold the transmitter for 30 seconds and then release for secure wall mounting. Do not peel off the double-sided tape