Parameters 1. Operating Voltage: AC 100-230V 2. Power Consumption: 0.25W 3. Wireless Frequency: 433MHz 4. Operating Temperature: -10°C~+55°C 5. Ringtone volume: ≥ 50 dB/1 m 6. Transmitter: No battery required Product Description Self-powered waterproof doorbell This doorbell does not require batteries, no wiring, plug and play, easy to install Built-in 38 music to choose from, 4 sections of volume can be adjusted (including mute) IP44 waterproof rating of the transmitter, can effectively prevent rain intrusion, sunscreen and waterproof 150 m remote control distance (open area) ， The indoor distance without partition is about 50 meters (This data is the barrier-free test distance in the open area of the experiment. The actual distance is affected by the use environment. The more obstacles there are, the farther the distance. Please refer to the actual distance) The receiver can be plugged in directly, 90-240V can be used Usage scenarios: residential, hotel, villa, hospital Function:
