RK61 61 Keys Bluetooth 2.4G Wireless USB Wired Three Modes Brown Switch Tablet Mobile Gaming Mechanical Keyboard with RGB Backlight, Cable Length: 1.5m 1. RK61 is with a ultra compact 61 keys layout, easy to carry. 2. Supports bluetooth USB wired 2.4G wireless 3-modes connection. Bluetooth connection supports connecting 3 bluetooth devices at the same time, press FN+Q, FN+W, FN+E to switch. 3. USB Cable is a detachable cable design, more convenient for your use. 4. Adopting double shot molding ABS keycaps, nearly 1.5mm thick, durable and anti-wear. 5. RGB backlit displaying, and with 17 backlit modes for option. 6. Multi-devices and three connect modes: RK61 mechanical keyboard can connect up to three devices simultaneously and can switch among them easily. On wired mode, this product is compatible with Window 2000XPVista7810 and Mac. On Bluetooth Wireless mode, it is compatible with Android and IOS system devices. 7. RGB backlight: 18 RGB backlight modes, 8 monochrome backlight modes and 1 full color backlight. These modes will give you more enjoyable when you gaming or typing at night. 8. Make you enjoyable in your working: RK61 mechanical keyboard with the scientific stair-up keycap design brings comfort, keeping your hand in a natural state to minimize hand fatigue after longtime use and help you typos. So it is designed for gamer, office worker, copywriter, programmer, typing teacher and editors. 9. Product size: 44.5x17.5x3.6cm.