Features: This One Handed Programmable Mechanical Keyboard offers- a unique and efficient gaming experience with its 12 programmable keys and RGB lighting, making it the perfect choice- for serious gamers. With its plug-play feature, this mechanical keyboard is easy to set-up and use, and its multifunctional capabilities allow for customization to suit individual preferences-. No driver required, hot swappable plug-and-play； ergonomic design-all keys functions can be set on the standard Windows- keyboard. The knob can also be set, the macro keyboard with functions such as, play the previous song, the next song, volume-up volume down, pause, play and other functions No conflict between the computer and multiple keyboards, convenient and easy to carry. Specifications: Item: Programmable Mini Keyboard Lighting：LED Number of Keys:12-Key Material: ABS- Mode:Bluetooth-compatible Size: approx- Size:approx 138.5x76.8x14.5mm/5.45x3.02x0.57in Color: Black/White Package Includes: 1 Piece Mini Keyboard note: Due to the problems of lighting effects and shooting angles, there will be certain tolerances in the product, please understand. Please allow 0-2mm error due to manual measurment.