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!