IPX5 rating for water resistance in any environment</br>Hands-free speakerphone functionality for answering calls</br>Rechargeable lithium battery for nearly 10 hours of play</br>Bluetooth wireless connection from most any enabled device</br></br>Product Description</br></br>Bluetooth 2drivers; 2passives and DSP; 10 hours of rechargeable playback; hands-free calling</br><br/>http://www.amazon.com/gp/product/B00NHZHG8O