Shop name:Chong Qing Shuo Yue Ke Ji You Xian Gong Si [Macro Keyboard with Knob]: This is a 12-key programmable keyboard with an adjustment knob. You can set shortcut keys to reduce the tedious process; the knob is settable and has the functions of playing the previous song, next song, and increasing the volume. volume reduction, pause, play and other functions [Wide application]: One-hand programmable keyboard can make your work faster and more efficient, and make the gaming experience more comfortable. It is suitable for office, games, music, media, industrial control, laboratory, production line testing and other fields [Programmable Keyboard]: Multifunctional mini mechanical gaming keyboard, you can set all key functions on the keyboard, and realize complex shortcut keys with one click [STUNNING RGB LIGHTING] This keyboard adopts the latest RGB lighting technology, offering seven color and five lighting modes for a customized experience. When connected via compatible Bluetooth, the lighting effects automatically turn off to save battery. [Bluetooth Compatible 5.0 Connection & Multiple Customizable Keys] This keyboard supports Bluetooth 5.0 compatibility and can be connected to your phone or tablet for volume control and next/previous song functions. All buttons and knobs can be customized to suit your personal preferences. (Note that only Bluetooth models have this function) Style:Bluetooth Colour:Wood Color Material:Plastic Package Contents: 1 * mechanical keypad Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.