Crystal Mini Hamburger Capsule Speaker USB Rechargeable Portable Audio (Silver) Enhance your music experience Portable speaker with sound boosting design 3 volume settings (off/low/high), LED power/charging light, USB charging cable, embedded lithium ion battery, extra crystals Use with electronic devices with 3.5 mm audio jack 2.25" Diam. x 1.5" H, Audio Cord approx. 4", Charging cord approx. 23.75"