Key Tronic Wireless Keyboard with Optical (UNPLUGGED-PS2SB02) Key Tronic K363R Wireless Keyboard &amp; Mouse Combo General Features: Black and gray housing RF technology PS/2 receiver 10-foot operating range Keyboard Features: 104-keys QWERTY layout Multimedia buttons Internet control buttons Runs on two (2) AA batteries (included) Detachable wrist rest Mouse Features: 3-button layout Ergonomic for left or right-handed use Optical technology