Great Idea For life-record shooting- This is a great idea to make your smart phone to become a action camera,to record those wonderful moment of your life,it can free your hand and maintain stable shooting status,it's excellent POV shooting tools. Versatility- Special design which is the first person perspective shooting for buyer, it could show the actually picture what you saw,head strap mount and chest strap mount provide different shooting heights,suitable for different shooting needs. Wide Compatiblity- Pellking Accessories kit not only use fo 4-7inch smartphone,also fit all Go Pro Hero9/8/7/6/5/4/32/1, Session, Fusion and DJI OSMO Action, Insta360 One R,, AKASO, SJCAM etc Usage scenario- Suitable for mountain biking, skiing,snowboarding, motocross, paddle sports,wake boarding and other action sports. Note- We have a small wrench in this phone VLOG/FPV kitplease use it to twist the long screw then tight the phone holder,the phone holder won't slide.please don't use your finger to twist it.you don't need to worry about "phone weight".we are very confident with Pellking accessories's quality,any quality issue please contact us anytime,we'll give you a replacement or a refund.