The customer comes first! If you have any dissatisfaction with the product, we support full refund within 30 days! RK855 Mode 68-Key Portable Ergonomic Gaming Bluetooth Mechanical Keyboard Features : [Multi-Device and Connect Mode]: RK855 is most of the Bluetooth-enabled devices. It can connected with up to three devices and can easily switched among them. Besides, MK11 supports both Bluetooth and USB wired connectivity, which fits you all kinds of using purpose. [Mechanical Gaming Keyboard and Blue Switches]-RK855 Key Mechanical Gaming Keyboard with Custom Mechanical Switches– designed for with greater durability and responsiveness. Fast mechanical keys with medium resistance, actuation, click sound, and tactile bump feedback. [Wide Compatibility]-Support PC / / / / Smartphone / Laptop, Specification: Model: RK855 Version Color: Black, White Material: ABS Color of keyboard axis：Red brown green Connection: Bluetooth + USB Wired Mode Dimension: 310*102*39mm Package Include: 1 x Bluetooth Keyboard 1 x Charging Cable Viflosae RK855 Mode 68-Key Portable Ergonomic Gaming Bluetooth Mechanical Keyboard Electronics Gadgets Up to 40% Off 【Tips】: If you have any questions, please feel free to contact me and I will reply to you as soon as possible within 24 hours.