Butterfly Helmet Mount Adapter with 3-Way Pivot Arm & J-Hook Buckle & Long Screw for GoPro, Insta360, DJI and Other Action Cameras (Blue) Filter-Lan Cable and Tools 9) Dynamically calibrate cable length

9) Dynamically calibrate cable length and make length measurement as accurate as 97%

40HQ: 644 cartons * 64 pcs = 41216 pcs

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you can take out your mobile phone

Item Weight 831g

Butterfly Helmet Mount Adapter with 3-Way Pivot Arm & J-Hook Buckle & Long Screw for GoPro, Insta360, DJI and Other Action Cameras (Blue) Filter-Lan Cable and Tools 9) Dynamically calibrate cable length1. Made of silicone and ABS plastic material, the mount holder is durable and lightweight. 2. The helmet chin mount comes with extension arm which can swivel 270 (extension arm is not included), so you can adjust it to wide range angles, such as forward visibility, backward visibility, and blind area. 3. Low profile design camera shake and mounts low and stable for good sports performance. 4. Easy to install and remove. 5. Compatible with any full