Features: 

•  Connect your LCD Touch BacPac or Battery BacPac to your GoPro from a distance

• When used with the LCD Touch BacPac, you can remotely frame shots, 
• adjust settings and control your camera from up to 3’ (0.9m) away

• Swap in a fresh Battery BacPac for extended battery life without un-mounting the camera.

• Compatible with HERO4, HERO3+, HERO3, Battery BacPac, and LCD Touch BacPac