PT-837 Wireless Keyboard Mouse Set Black EN/GR Product number: PT-607 Product color: Black Wireless Technology: 2.4GHz Size: 20m Receiver: Nano receiver Keyboard Battery: 1x AΑA (included) Dimensions: 429 x 126 x 22.8mm English / Greek Characters Mouse Resolution: 1600 DPI Battery: 1x AA (included) Dimension: 104 x 65 x 39mm