6 Keys USB Keyboard For W/ Volume Button Knob Programming Gaming For Keypad MechanicalFeatures:and plug and for play without driverWith knob function, cut the previous song to the next song, add and subtract and out of the picture, one-handed Mechanical for key shaft, up to 50 million timesSupport ergonomic and programmable Can be used in the operating system like for Specifications Acrylic+MetalSize: approx 102x57x37mm/4.01x2.24x1.45inColor: Black / White / Keys: 6 Keys USPackage Includes:1 PC x KeyboardNote:Due to the problems of lighting effects and angles, there will be certain tolerances in the product, please understand.Please allow 0-2mm error due to manual measurment.