parameter &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 1. Working voltage: DC3V 2. Working current: 240mA 3. Working frequency: 433MHZ [315MHZ, please note] 4. Transmit power: + 13dbm 5. Remote control distance: 50M ~ 100m [Different use environment] 6. Modulation mode: ASK 7. Pairing method: smart copy type 8. Working environment: -15 * 75 degrees Celsius<img src="https://ae01.alicdn.com/kf/HTB1bxpEcEWF3KVjSZPhq6xclXXag.jpg?width=800&amp;height=800&amp;hash=1600"><img src="https://ae01.alicdn.com/kf/HTB18ZBDcv1H3KVjSZFHq6zKppXa1.jpg?width=800&amp;height=800&amp;hash=1600"><img src="https://ae01.alicdn.com/kf/HTB1IrNLcBGw3KVjSZFDq6xWEpXam.jpg?width=800&amp;height=800&amp;hash=1600"><img src="https://ae01.alicdn.com/kf/HTB1w60DcwaH3KVjSZFjq6AFWpXaR.jpg?width=800&amp;height=800&amp;hash=1600"><img src="https://ae01.alicdn.com/kf/HTB1948rbkxz61VjSZFrq6xeLFXa5.jpg?width=800&amp;height=800&amp;hash=1600">&nbsp;&nbsp;

4-button remote control