1、Stretchable and Immersive: Chest strap is adjustable and comfortable for wearing the for camera on your chest. It has been hailed as a more immersive way to film than attaching camera to helmet. 2、Free Your Hands: Support mobile phone photography with a width of 5cm to 10cm. With this device, it is easy to take immersive videos and photos from the chest angle. 3、Detachable Stand: You can position your smartphone horizontally and vertically, so you can freely adjust the angle according to the shooting environment. 4、Applicable Scene: Fit for skiing, mountain biking, motocross, rowing, any sport you want to photograph from below the helmet angle. While skiing, you can focus on your arms, knees, poles and skis, while riding a bike or motorcycle, you can focus on your arms and handlebars. 5、Strong Compatiblity: Not only for smartphones, but also for motion camera. Compatible with for Hero 5/4/4 Session/3 and / 3/2/1, for Levin, for muson, for DJI Osmo Action, for Sjcam, for Dbpower and other motion cameras.