Perfect for GoPro hero 9,hero 8,for GoPro Max or IPhone,Samsung,Huawei etc.smartphone.Not support other action camera. Four button,easy to mode switching/On off control/quick mode setting/camera parameter setting. Ultra-long standby time,2.5h fully charged,10 hours working time. Can control 5 for GoPros at the same time. Control distance up to 80m without signal interference. Both the main unit and remote control can display the remaining power. Upgrade hand wrist strap,more comfortable . Product model: GP-RMT-T10 Product weight: 35.87g If you encounter problems with use or pairing, resetting the camera to the factory mode and re-pairing can solve most of the problems. Colour: Black Material: Plastic Size: 66 x 39.4 x 17.5mm Package Contents: 1 x remote control 1 x USB cable 1 x English manual Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.