Listen to music while you enjoy a long bike ride, watch TV shows, and streaming movies for hours, or finish an audio book while you work around the house-all wirelessly and without interruption. With a speakerphone setting, you can easily take calls from your phone even when music is playing. The call will come through and automatically turn off the music to allow you to take the call! Dimensions: 2.75 inches deep x 4.3 inches width x 2 inches high Features: Includes a rechargeable 400mAh lithium battery with USB Cable Charging time is 2-3 hours Play music for 10 hours battery life for playing music on a single charge. Play range: 32 Feet Built-in plastic shell