Color Red + White Brand N/A Model N/A Quantity 1 Set Material Plastic Type GamingErgonomic Interface USB 2.0 Wireless or Wired 2.4G Wireless Bluetooth Version No Tracking Method OthersOptical mouse Back-lit No Operation Distance 10 m Powered By AAA Battery Battery included or not Yes Battery Number 2 x 2 (Both of keyboard and mouse needs 2 pieces AAA batteries) Waterproof Yes Supports System Win xpWin 2000Win vistaWin7 32Win7 64Win8 32Win8 64 Other Features Keyboard keys: 104; Mouse resolution: 1200dpi; Operating distance: 10m Packing List 1 x Wireless keyboard 1 x Wireless mouse 1 x Wireless receiver (In the mouse) 4 x AAA batteries