100% anti-ghosting 104 keys.ergonomic, durable and waterproof design: this ip67 keyboard is made of full metal material, with matte-finish texture, sturdy and robust enough to protect it from scratch. it allows multi-keys to work simultaneously with high speed. each key is controlled by independent switch, delivering reliably accurate performance to players without any program error.mechanical brown switches: offering the best tactile typing experience, also being ever so slightly quieter, fitting for office or gaming use. the switches can be easily pulled out for dust removal or cleaning or replacement with 8 spared switches.round keycaps: redragon features special round keycaps. with its concave surface and touch-type support, it's equally ergonomic and beautiful. it took many iterations in both the digital and physical domain to bring this balance of style and function. the automotive strength chrome accent is extremely durable while maintaining the highest shine. that is, it's interesting and gorgeous!18 backlit modes: press fn+ins-pgdn to enter pro-gamer mode. rgb led adjustable lighting with 6-themed backlight -18 lighting models. you can also adjust their brightness with fn +"?"and"?" besides, there is a 9-color single backlit mode for this keyboard.color:brown switch-round keysredragon features industrial strength mechanical switches that provide a unique clicky tactile feel.we think it's a great modern equivalent for the clicky typewriters of old. mechanical keyboards promote a more accurate typing experience and the clicky feedback is both satisfying and endlessly fun! if you've never experienced mechanical keyboards,the redragon k556-rk is the way to go!keyboard setting:6 themes backlights12 backlight models4 led brightness levelsadjustable pulsing rate led lights104 standard keysall non-conflict keys,12 multimedia keys,adjustable input speedsinterchangeable arrow keys and wasd keyswin keys can be disabled when gaming,laser engraved chiclet keycapstechnical specification:connector:gold-plated usb 2.0,3.0keyboard size:17.13 x 4.88 x 1.59 incheskeyboard weight:1.3 poundsmultimedia keys:12material:full metal package content: 1 x redragon k556-rk rgb 104-key mechanical gaming keyboard. 1 x user manual. 1 x keycap puller. 8 x free switches for diy. 1 x warranty card. please notice: no cd software included