10M remote control. Excellent battery life. Bluetooth 4.1 compatible with Xiaomi cellphones or Xiaomi yi camera. One button to select recording or shooting Only need one time match, no complicated procedures. How to connect remote controller to the camera: 1. Update your camera to the 1.1.0 version or above if still didn't. 2. Turn on the camera. 3. Press 2 times the Wi-fi button on your camera, it must be always ON then, not blinking. 4. Remote controller is connected, enjoy!