?COME WITH EXTRA KEYCAPS&ENJOY YOUR LIFE:The BOYI TD66 package comes with extra themed keycaps, so you can re-pair the themed keycaps the way you like.BOYI TD66 tri-mode mechanical hot-swappable keyboard can bring you a different and extraordinary typing and aesthetic keyboard experience for your work and study. Welcome to use BOYI TD66 keyboard to make your life more convenient and take you into the era of beautiful artwork of real mechanical keyboard!. ?PC GAMING KEYBOARD AND GAMING MOUSE COMPATIBILITY: Wide Compatibility!Compatible with Windows 10, Windows 8, Windows 7, Windows Vista, or Windows XP, Limited Mac OS keyboard support. Works well with all major Computers Brands and Gaming PCs. ?MULTI-THEMES PBT DYE SUBLIMATION XDA KEYCAPS: Double Shot XDA PBT Keycaps Sturdy and thick ergonomic keycaps feel more comfortable when you strap them on. Unique colors provide an attractive look for your keyboard. Advanced dye sublimation technology is used to keep the pattern from fading.The height of the XDA makes it more comfortable for you to use and feels great!. ?2-IN-1 DESIGH ERGONOMIC MECHANICAL KEYBOARD: The BOYI TD66 keyboard is equipped with a removable top cover that can be provided in two styles (recessed or floating) for your choice. Customers can DIY the case of the keyboard by themselves. And our keyboards feature? Dual Layer Sound Absorbing Silicone Pads? With a double layer of sound-absorbing silicone pads to achieve better sound absorption and provide the ultimate perfect typing experience for you!. ?AMAZING RGB EFFECTS&SOFTWARE PROGRAMMABLE:This BOYI TD66 mechanical keyboard has various 17 default beautiful RGB effects, you can easily switch the lighting effects of different modes of the keyboard by pressing FN+TAB. You can also toggle the keyboard's side lighting effects by pressing FN+Ctrl (on the left). For those who prefer more DIY settings, we also provide macro editing drivers. You can use the software to create your own favorite effects!. ?HOTSWAPPABLE GATERON YELLOW SWITCH KEYBOARD: The TD66's use popular hot-swappable Gateron Yellow Custom mechanical Switches and can be replaced by other hot-swappable mechanical switches without soldering. You can easily customize the keyboard and replace the switches for a completely different tactile experience. Compatible with most 3-pin and 5-pin switches on the market. Plug and play. It provides more options and fun to custom your unique mechanical keyboard! You will get 2 extra switches as the Alternate replacement Switches. ?3 MODES CONNECTIVITY WIRELESS&WIRED KEYBOARD: With Bluetooth 5.0 & 2.4GHz & Type-C USB Cable Three mode to connect 3 devices simultaneously via Bluetooth 5.0 wirelessly. And it comes with a detachable USB Type-C cable and a 2.4GHz dongle (adapter). Plug and play, no complicated connection process. Even if the keyboard runs out of power in Bluetooth mode, you can still use it normally in N-Key rollover (NKRO) wired mode. ? Strong compatibility with Mac and Windows systems ? Can easily switch between different modes. Support Multi-system, multi-device connection Fashion mechanical keyboard!. ✓?Hotswappable Gateron Yellow Switch Keybaord?Hotswappable Gateron Mechanical Switch of TD66 can be replaced by other hotswap switches Mechanical without soldering. You can customize the keyboard easily and change out the switches to have a completely different tactile experience. can compatible with most 3-pin and 5-pin switch in the market like Cherry MX, Gateron, Kailh, etc. You will get 2 extra switches for exchange.