1.With its conveniently stored 3.5mm line in cable, the speaker is compatible with any device that has a headphone port. No complicated setup process just plug in and play, you'll be enjoying your favourite music in seconds. 2.COMPACT DESIGN: Super small design allows you to take it anywhere & fits in your pocket 3.A GREAT SOUNDING EXPERIENCE: Lithium ion battery lasts up to 5-6 hours (depending on volume level) with a powerful output for its compact size of 2.4 Watts 4.SIMPLE TO USE: Power on switch displayed on the side and volume control 5.POWER YOUR DEVICE: LED power indicator to show power and charging status. Mini USB port for charging the device Material:ABS Colour:black Size: Approximately 52x52x3.8mm Note: Light shooting 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.