My first wireless charger. Seriously folks - where are you wearing these ?gems? for any extended period of time? You get what you pay for (these are cheap). Here are the reasons why I went back to using Master & Dynamics wired MH40. This pair is dramatically smaller and the straps are so tight they gave my girlfriend horrible sores as thick as the straps because they?re just so dang tight 99 plus shipping which was the same price as the trainer. First, the box is stained . I will try to request a manual and see what happens. Perfect to choose from whatever mood you feel like. Nic Hopefully the price goes towards the quality.