【Tri-Mode Connection & 4000 mAh Battery】The K521KS red dragon keyboard supports Bluetooth, 2.4GHz wireless, and USB wired connections, allowing for quick switching between devices within 10 meters for efficient multitasking. It supports up to five devices connected simultaneously. In addition, this rechargeable keyboard has a built-in 4000mAh high-capacity battery, so you never have to worry about running out of battery life anxiety

【RGB Backlit Gaming Keyboard】The K521KS PC Gaming Keyboard comes with 8 different RGB backlighting modes, 7 monochrome backlighting colors, rainbow mode, as well as adjustable brightness and breathing modes to give you dazzling visual effects

【Mechanical Feeling & Fast Tapping】The PC Keyboard Keys are Designed for Mechanical Feeling, Giving You a Better Feel During Use and the Ability to Trigger Keys Quickly, Allowing You to Win All Your Games

【25 Keys Anti-Ghosting Keyboard】Anti-Ghosting Ensures Every Button Can Be Triggered. This Allows You to Trigger Key Combinations In The Game Accurately, And Each Skill Can Be Accurately Released to Increase Your Winning Rate. Redragon K521KS Will Be Your Perfect Partner

【12 Multimedia Combination Keys】The K521KS Wireless Keyboard is Equipped with 12 Multimedia Keys That Can Greatly Enhance Your Gaming/Office Efficiency and Make It More Convenient to Use