These cheap shoes are great for ordinary use. This doesnt provide studio quality sound or anything; it sounds like a phone ear piece which is fine for me to use on zoom and listen to pod casts. The only downside is that its not bolted to the floor or weighted down like equipment at a gym, so there is a little wobble doing certain exercises but it does not feel unsafe and Im sure this could be fixed by weighing the feet down if it bothered you. I use it to hang my loofah and pumice stone. I dont know how long the battery life actually is but that is because Ive never had them die on me. And from what Im told my audio output is crystal clear when Im talking to my team mates on discord. Suenan muy bien pero son demasiado grande para el oído y en la foto se ven muy pequeños Yuck! I thought I assembled it wrong, so I redid the assembly following the instructions again - the rack leaned and the poles didnt fit properly. I wish Id known how good these low priced AT microphones sounded before going down that path, the AT2035 makes an excellent tom tom microphone too and its all done, you dont need to spend an afternoon disassembling mics and soldering fragile expensive components.