Precautions: 1. This headband is suitable suitable for a of action cameras. Maximum load of external camera is 250g. 2. The user can choose whether to use the optional co-directional extension according to the shape and size of the camera connector. 3. When using a camera with a 1/4inch screw on the bottom (such as ONEX2), you need to use the supplied 1/4inch screw adapter. 4. Please install the headband according to the instructions suitable for use, do not install other accessories by yourself. 5. After use, please air dry the headband and store it in a dry, cool and ventilated place. Instructions suitable for use 1. Adjust the headband to the appropriate size. Rotate the front bracket to adjust the square of the front bracket towards. 2. Attach the camera to the headband front bracket with the 1/4inch screw rod. Set the headband is worn on the . Note: The camera can also be mounted on the headband with a rear bracket. Model Number:Headband Strap Type:Straps & Mounts Type: suitable for Gopro10/9 / X2/ R/ GO 2 Suitable suitable for circumference: 46-70cm color:Black Material:PC Package Contents: 1 x headband 1 x Co-directional extension connector 1 x 1/4inch screw adapter 2 x 1/4inch screw fixing rod 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.