DREVO Calibur 71-Key RGB LED Backlit Wireless Bluetooth 4.0 / Wired Gaming Mechanical Keyboard Black Switch-Black Compact design, tenkeyless mini keyboard, save the space, easy to carry away Bluetooth 4.0 and USB wired connection, rechargeable battery lasting 20 hours Customizable RGB LED lights with 7 colors, 7 preset lighting effects for your choice ABS doubleshot keycaps stay clean, adjustable keyboard stand, Anti-ghosting, N-key rollover(wired) By software, functions like macro keys, key remaps and combos can be easily achieved Design your own keyboards appearance Handy, comfortable and portable for everyday work More workspace, less cord drag. The Calibur is a 71-Key mechanical keyboard which lacks the function row. It has equipped with high-quality keycaps, RGB backlighting, and Bluetooth 4.0/USB dual connectivities. Drevo has purposely designed the Calibur for these mechanical keyboard enthusiasts who have always been asking for a gorgeous keyboard with great portability and quality. <span class="a-text-bold">Black</span>: Linear with high resistant force. Choose it if you like heavily pressing down keys. Red: Linear with soft resistant force. Choose it if you like lightly pressing down keys. Blue: Tactile and clicky with a bump feel. Choose it if you like typing and dont mind loud key clicks. Brown: Tactile and non-clicky with a bump feel Choose it if you want a middle option of Black and Blue.