

This product is widely applied to various types of bus, it consists of 2 parts: wireless doorbell button and wireless doorbell button receiver.
This product is widely applied to various types of bus, it consists of 2 parts: wireless doorbell button and wireless doorbell button receiver.

| Working voltage | 3.6V |
| Transmitting power | 0.04W |
| Standby power | 0.004mW |
| Charging voltage | 5V |
| Charging voltage limit | 8V |
| Transmission distance | 30-50M |
| Tramsmission frequency | 249M Hz |
| Plug connector | AMP172133-1 |
| Input voltage | 5V-24V |
| Working voltage | 5V |
| Receive frequency | 249M Hz |
| Output mode | low level |
| Max output loading current | 500mA |
| Max output loading voltage | 24V |
| Paring transmitter | Max 15 transmitter |
| Standby power | 0.01W |
| Speaker input | 4Ω 1W |