General description Outdoor Waterproof Wireless Doorbell with LED Time Display is a convenient and innovative door chime kit designed for homes, offices, and shops. This wireless doorbell operates without batteries, utilizing kinetic energy to generate an electrical signal when the push button is pressed. With a range of 150 meters, it ensures you never miss a visitor, regardless of obstacles like walls or doors. Technical specifications Waterproof rating: IP64 Operating temperature: -20°C to +65°C Wireless range: 150 meters (492 feet) Melodies: 38 adjustable chimes Volume levels: 4 (0-110 dB) Power source: Self-generated electricity Installation The transmitter can be easily attached to the wall using the included adhesive film. The receiver plugs into a standard electrical socket for operation. Usage Press the push button to ring the doorbell, converting kinetic energy into an electrical signal. The LED time display functions as a clock when the receiver is not ringing. Adjust the