El transmisor y los bodys los usé a una distancia de 50 metros y funcionó sin problemas. im impressed. If that?s important to you look elsewhere. I did lots of research until I found a similar one that costed twice as much. Brought it to a picnic in a busy urban park recently and friends were impressed by the volume, audio quality, and the fact it is reasonably waterproof. To Astros credit, the app is available for Xbox One so at least I dont need to disconnect it and move to a PC/Mac to change the settings. Between charges these last weeks before they need charging. Its super cute on her feet. First I made sure that my beats were fully charged. It will fit almost any headset.