Focus Wireless Doorbell PB-206R

Functions and Specification:
1.Slim and elegant appearance, waterproof
2.Digital circuit design, anti-interference
3.Timing status report
4.Wireless emitting and receiving, distance 150-200 meters (open area)
5.Working voltage: 3V(2pcs CR2032)
6.Working current:<=25mA
7.Emitting frequency:433MHz
8.Working temperature:-10℃~50℃
9.Dimension:85*85*15mm