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- Operating range up to 100 meters in the open area

- Using high frequency transmit technology and innovative function of same frequency with different code, one doorbell has one code to avoid disturbing from neighborhoods

- 16 selectable melodies

- Blue LED indicator: 1pcs，Green LED indicator：1pcs

- Self Generated Power Transmitter,without battery

- N.W. of Receiver (doorbell): 81g

- N.W. of Transmitter (button): 38.6g

- Approval: CE,RoHS

- Radio Frequency: 433.92MHz

- Waterproof transmitter: IP44

- Receiver power supply: AC230V

- Plug Type: EU