Advanced 2.4 GHZ Wireless.
You can work or play in more places like your comfycouch,the long-range wireless connection virtually eliminates delays,
Multiple battery-safe mode,support wake-up function in PC and enter sleep mold automatically while idle.
Invisible receiver compartment.(Receiver stowable in the mouse: protects against dirt or loss.)
New improved wireless,uses 2.4Ghz wireless for much greater range (up to 10 meters) and less chance oof interference from other nearby wireless devices.
Keyboard Battery: 2 x AAA Batteries(Battery Is Not Include)
Mouse Battery: AAA Batteries(Battery Is Not Include)
Wireless Data Transfer Rate: 1Mbps
Working Frequency: 2450MHz-2476MHz
Keyboard Keys: 101
Mouse Buttons: 3
Rated Operating Voltage: Keyboard 3V, Mouse 1.5V
Rated operating Current: 1.5mA
Compatible with Windows ME/2000/XP/Vista/7/ for Mac
Mouse Dimension: 100mm x 53mm x 20mm/3.94inch x 2.09inch x 0.79inch
Keyboard Dimension: 387mm x 115mm x 24mm/15.24inch x 4.53inch x 0.94inch