Motospeed K27 One-handed Mechanical Keyboard 27 Keys Wired Gaming Keyboard LED Mixed Light Effect Mechanical Blue Switches Features: 27 keys compact layout, easy to operate with one hand, convenient to carry. The mechanical blue switch has crisp sound and clear paragraph sense, strong mechanical hand feel. LED mixed light effect, easy to switch according to your needs. Ergonomic design, the palm rest reduces the pressure on the wrist, more comfortable e. N-key rollover design, the keyboard offers great responsiveness and immersive gaming experience. Specification: Type: One-handed mechanical keyboard Brand: Motospeed Model: K27 Color: Black Key number: 27 Mechanical switch: Blue switch Light effect: LED Interface: USB Operating life: 50 million times Supported system: Windows XP/Win7/Win8/Win10 Working voltage: 5V±5% Maximum current: 300mA Item size: 21.1 * 14.8 * 4.1cm /8.31 * 5.83 * 1.61in Item weight: Approx. 378g /13.33oz Packing list: 1 * Keyboard 1 * User manual