PRACTICAL HANDS-FREE DESIGN: the adjustable chest strap allows smartphones or action cameras such as GoPro to be securely attached to the chest for comfortable, hands-free recording of adventures. STABLE AND SECURE STRUCTURE: Anti-slip silicone and rubber padding ensure optimal grip and protection against scratches. The design guarantees stability even during intense outdoor activities. 360 ROTATABLE HOLDER: the smartphone holder allows easy switching between landscape and portrait mode and offers versatile shooting angles ideal for vlogs and adventures. VERSATILE COMPATIBILITY: fits smartphones from 55 to 105 mm wide as well as action cameras such as GoPro, DJI Osmo and Insta360 with integrated 1/4 thread for tripod connection. WATERPROOF AND ROBUST STRAP: elastic nylon material offers durability and comfort. the waterproof chest strap stays secure and comfortable even in bad weather. USER-FRIENDLY DESIGN: fully adjustable and easy to wear, even over thick winter clothing. a quick-release mechanism ensures easy donning and removal. Wide compatibility: suitable for action cameras and smartphones, compatible with most devices on the market ideal for taking photos and videos on the go. Hands-free design: adjustable, elastic chest strap allows you to mount your GoPro or smartphone so you can capture movement without a handheld camera. Easy to use: fully adjustable for different body sizes and clothing, with quick release for easy donning and doffing even with gloves. Stable structure: anti-slip rubber pads prevent the smartphone from slipping or scratching and provide a stable hold for immersive POV shots. Rotatable holder: smartphone holder with 360 rotation for landscape and portrait format, perfect for sports such as cycling, skiing, hiking or TikTok and YouTube videos.