Slim wireless keyboard and mini optical mouse set with USB receiver. It is an ideal input device for your PC, laptop and notebook. It adopts 2.4GHz wireless transfer technology for strong and secured wireless signal. It features new slim keys allowing a smoother, quieter and faster experience when typing. New improved 2.4GHz wireless for much greater range and less chance of interference from other nearby wireless devices. Specifications: Keyboard Connection: Wireless Optical Resolution: 1200 DPI Mouse Connection: Wireless Type: Slim, Multimedia, Wireless Interface: USB Keys Quantity:78 With Multimedia Function Keys: Yes Keyboard Battery: 2 x AAA battery (Not Included) Mouse Battery: 2 x AAA batteries (Not Included) Keyboard Size: 285.3mm x 133m x 18mm Mouse Size: 113mm x 59mm x 20mm Color: Black, Silver, Gold Material: ABS Plastic Package Included: 1x Slim Wireless Keyboard 1x Wireless Mini Optical Mouse 1x USB Receiver