2.0 Mini Usb Speaker 100% made by hands Rechargeable Lithium battery RF Range: 10 meters/33 feet Playback time: 3-5 hours item No.: ZC1112material:bambooitem name: Brand New Professional 2.0 Wirock Mini Usb Speaker Portable For Mobile Phones FOB port: Guangzhou Back to nature, enjoy nature music, any time any where Brand New Professional 2.0 Wirock Mini Usb Speaker Portable For Mobile Phones 100% ...