The Bass Buddy twists apart and expands to create a mini speaker. The internal battery lasts up to 6 hours and charges via any PC or device with a USB port. A conveniently stored 3.5mm line-in cable makes the speaker compatible with any device that has a headphone port. No complicated setupjust plug in and play, and enjoy your favorite music in seconds.Design: Compact size allows for easy portability and fits in your pocket For Users: Enhanced sound field with a unique design that allows the cable to be stored in the base of the speaker Sound Experience: Lithium battery provides up to 56 hours of playback time (depending on volume) with powerful output for its size Ease of Use: Power switch and volume control located on the side Power Indicator: LED indicator shows power and charging status; mini USB port for charging Dimensions: Approximately 52 x 52 x 3.8 mm Material: ABS Color: Black Package Contents: 1 x Speaker 1 x USB Cable