option A mobile phone clip supports rotation and can be shot horizontally and vertically

option B C D styles are similar, phone can only be shot horizontally

【Usage Occasions】The phone chest mount suits for skiing,fishing,biking,motorcycle,Hands-Free for commentary on the video.we aren't suggest use it shooting video when jumping and running,When you turn on the “anti-shake” function of your phone, the effect of shooting video will be better.
【Great Choice for POV/VLOG】The phone can be placed horizontally and vertically,The design of J-Hook and long screw can make the phone rotate 90°, The size of this strap is easily adjustable,fit over even the largest winter jackets,fit to wide range body size.
【Stable Structure】There are two non-slip rubber pads at the bottom and top of the phone holder;When you use the mini wrench provided to fasten the long screw to the J-hook mount,The mobile phone clip will be in accordance with your adjusted angle, stable shooting, will not slide.
【Quick Release】The smart phone chest strap mount with J-HOOK can be easily install and remove your phone,which can be disassembled in even one second. It is very convenient.
【What will you get】Package included:1 x Phone chest strap mount,1*S adpater,1 x J-hook,1*Long screw,1*Universal phone holder,Any quality issue please contact us directly,we'll give you a replacement or a refund,you can buy it with confident."

B:

D: