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 its built-in 3.5mm line-in cable, the speaker is compatible with any device that has a headphone port. No complicated setupjust plug in and play. Enjoy your favorite music in seconds. Compact design: Super small size allows you to take it anywhere; fits in your pocket. User-friendly sound field with a design that allows the cable to be neatly stored in the base of the speaker. High-quality sound experience: Lithium-ion battery lasts up to 56 hours (depending on volume level) with powerful output for its compact size of 2.4 inches. Simple to use: Power switch and volume control located on the side. LED power indicator shows charging and battery 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 is included; other products are not included. Note: Lighting and monitor settings may cause slight color differences between the image and the actual item. Measurement error allowance is +/- 13 cm.