Three Modes Believe it or not, this is the first generation of RGB three-mode wireless keyboards on the market. Wireless mode with stable Bluetooth 5.0, hassle-free 2.4Ghz dongle plus USB-C wired mode set no limits about your keyboard connection. 84 Keys, Redefine TKL The innovative 80% unique layout differs from traditional TKL keyboards, which cuts more clumsy space off while supporting the same functionality as practical arrow, multimedia and control keys. Hot-swappable Friendly Brown Hot-swap PCB allows you to replace 3 pins/5 pins switches freely without a soldering issues. Enjoy the fun of making your own unique keyboard. Still, cudgeling your brain of which switch to choose? Go ahead for the brown with gentle and stable features, it compromises both tactile and low noise two supreme merits, and offers you the most friendly and satisfying experience. Hub Design & 3750mAh Big Mac This 3750 mAh keyboard is armed with 2 built-in USB pass-through ports and 1 Type-C Port, allowing to back up more facilities. Week-durable to 200 hours with nonstop using under backlight off status, fully charged requires only 6-7 hours. Add a magnetic pad foot or not, is up to your definition of comfort. Diverse RGB Backlit 21 onboard RGB backlit modes are selectable for your different playing needs. 5 levels of brightness and flowing speed are adjustable for any case. Lights up and enjoy your own RGB vibe.