CM Storm Devastator Gaming Bundle with Membrane Keyboard & Optical Mouse... Keyboard has custom membrane design for durability and improved tactile feedback, Ergonomic ultra low profile design, Ultra durable Laser etched and grip coated keycaps, Anti-slide rubber pads on bottom side, Dedicated Multi-media keys, Blue LED backlight with on/off key shortcut. Mouse has Anti-slide rubber pads on bottom side, Dedicated Multi-media keys, Blue LED backlight with on/off key shortcut, Large high-precision mouse wheel and Solid rubber side pads for ultimate stability. USB connectivity