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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

- 30 melodies

- Receiver Battery: 3 x AA(not included)

- Transmitter Battery: 1x3V CR2032 (included)

- N.W. of Receiver (doorbell): 97g

- N.W. of Transmitter (button): 21g

- Approval: CE, RoHS

- Radio Frequency: 433.92MHz

- Waterproof of transmitter: IP20