Self-generating wireless doorbell Smart Home Doorbell Frequency 150M Long-Distance Wall Caller DoorbellA

Package Contents: 1 x doorbell transmitter 1 x doorbell receiver

Product parameters: 1. Self-generating design without Batteries, long-distance transmission 2. The doorbell transmitter does not require a battery and is easy to install 3.150 meters strong penetration, ultra long distance transmission 4.25 polyphonic music 5. Volume adjustment, 3 levels controllable, bell flashing ligh

Product model: Self-generating wireless doorbell Wireless distance: open and barrier-free without interference distance about 150 meters Ringing tracks: 25 chords Volume adjustment: 3 levels controllable, ringing flashing lights Rated voltage: AC100~240V 50/60HZ Wireless frequency: 433.92MHZ Operating environment: -10~+55 °C Outdoor unit size: L0.95CM x W0.60CM x H0.45CM Outdoor unit size: L0.8CM x W0.45CM x H0.21CM colour:White Material:ABS EU Plug US Plug