Itcan be used to train triceps, bicep, deltoid, inner chest andforearm. Found a plastic pole, from the gel piece had broke off and was still in the base and the decrease volume button had actually broken off the board and the operating switch had come out rendering the headset useless. Mind you they are too big for her. It does what i need it to do, but i find it cumbersome. Although this is supposedly 360-degree, it is very obvious that when you turn it towards one side that the bass is louder on the other side, the same with treble, etc. Pricing, battery, sound. And the best part is that is water resistant. I bought these in June 2020 and now, in October 2020, can barely wear them because the bottom inside material is so worn and ripped that it hurts to walk on. I know nothing about record players so all this had to do was connect to my Bluetooth sound bar without issue and play my records. My wife thinks they look like pasties, my daughter thinks they look like a loaf of whole meal.