The Bass Buddy twists apart and expands to create a mini speaker. The internal battery lasts up to 6 hours and charges using any PC or device with a USB port. With a conveniently stored 3.5mm line-in cable, the speaker is compatible with any device that has a headphone port. No complicated setup—just plug in and play. Enjoy your favorite music in seconds. Design: Super compact design allows you to take it anywhere and fits in your pocket. For users: Sound field and a unique design allow the cable to be folded into the base of the speaker. Sound experience: Lithium battery lasts up to 5–6 hours (depending on volume level) with a powerful output for its size of 2.4W. Simple to use: Power switch and volume control located on the side. Power indication: LED indicator shows power and charging status. Mini USB port for charging the device. Size: Approximately 52 x 52 x 3.8 mm Material: ABS Color: Black Package Contents: 1 x Speaker 1 x USB Cable Only the above package content; other items are not included. Note: Lighting and different displays may cause the color of the item to appear slightly different from the actual product. Measurement allowance is +/- 1–3 cm.