Wireless Doorbell
• Easy for installation
• Self-Learning code function,
no interference
• Includes 25 selectable tones
• 3 Grade volume adjusting
• IP55 water proof
• Transmitter battery lifespan: 1 year
• Working frequency: 433.92MHz
• Receiver rated voltage: AC110-220V
• Receiver standby current: <5mA
• Receiving sensitivity: -107dBm
