The Bass Buddy twists apart and expands to create a mini speaker. The built-in battery lasts for up to 6 hours and charges with any computer or USB port. With a conveniently stored 3.5mm line-in cable, the speaker is compatible with any device that has a headphone jack. No complicated setup process, just plug and play and you'll be enjoying your favorite music in seconds. DESIGN; Super small design allows you to take it with you wherever you go and it fits in your pocket FOR USERS; soundbar and a unique design allows the cable to fold into the base of the speaker A FANTASTIC SOUND EXPERIENCE; The lithium battery lasts for up to 5-6 hours (depending on volume level) with a powerful output for its size of 2.4 EASY TO USE; On/off button displayed on the side and volume control POWER ON YOUR DEVICE; LED power light to show power and charging status. Mini USB port for charging the device Size: About 52x52x3.8mm Material: ABS Color: Black Package Contents: 1 * Speaker 1 * USB cable Only the above package content, others are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.