Multimedia USB computer volume control controller, it seems simple, but its essence is extraordinary. Full metal texture, strong hand control, flexible silicone bottom is strong and non-slip. Strong compatibility (Win10 / 8 / 7 / Vista / XP / Android), USB power supply, plug and play, no need to install any plug-ins. Support volume adjustment, song switching, even one-key mute, one-key resume song playback, only need a multimedia USB computer volume adjustment controller to complete Features: Practical Volume Controller: support volume adjustment, song switching, even one-key mute, one-key resume song playback, etc. Strong and Sturdy: made of all metal, the high-quality rotating shaft is matched with a detachable USB cable, and the operation is extremely simple. Simple to Use: it has strong compatibility(Win10/8/7/Vista/XP/Android), plug and play, no need to install any driver plug-ins, and the operation is simple and convenient. Easy to Carry: the appearance is meticulous and simple, small and full of texture, its mini size is very portable. Anti-skid Design: the bottom is made of environmentally friendly flexible silicone, which is wear-resistant and non-slip, yet beautiful. Specifications: Material: Metal Compatible: Wins / Vista / Android Connect: USB Connector: USB Music Style: Electronic Use Voltage: 5V Item Size: 100 * 61 * 24mm / 3.94 * 2.40 * 0.94in Item Weight: 249g / 8.81oz Package Weight: 376g / 13.27oz Package Size: 14.8 * 9.2 * 9.2cm / 5.83 * 3.62 * 3.62in Package List: 1 * Volume Controller 2 * Type-C Cable