Chuông Cửa Không Dây Thông Minh M6 433

The wireless doorbell button is mainly used in pair with the host. When the doorbell button is triggered, the host sends a "BUZZ, BUZZ" full-range wireless transmission, and the wireless transmission distance is 50-80 meters. The shape design is small and beautiful; Battery life is up to 3 years; no replacement is required; Transmission frequency 433.9 Working voltage: 3V (CR2032) Quiescent current: 0 Transmit Code Protocol: 1527 Protocol Single weight: 10g Product size: 55*30*10 mm colour:white Material:Metal + plastic Package Contents: 1 * Smart Door Detector 1 * English ManualOnly the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.