Wired/2.4 GHz/BLUETOOTH TKL LOW PROFILE COMPACT TRI-MODE KEYBOARD This is Redragon's first-generation 3-mode connection technology, which takes your user experience to the next level in every way. It has USB-C wired, BT 3.0/5.0, and 2.4Ghz wireless modes. WIRELESS WITHOUT WORRY The K539 provides a real wireless and latency-free connection for all devices on the market thanks to its integrated upgraded 3.0/5.0 Bluetooth and 2.4Ghz wireless chips. There are no limits to the possibilities because switching between various wireless devices is simple. Low-Profile Mechanical Keyboard, 80% TKL TKL LOW-PROFILE 80% Small The low-profile design of the Tenkeyless 87 keys provides a shorter actuation distance and more room for mouse movement. maintains the white simplicity style while offering precise performance at half the height. REMAINING DURABLE ONLINE A 1900mAh enough battery is housed in the lightweight, ultra-thin, long-lasting, low-profile thin board.