Description :  

• Streamlined full-featured RF keyboard built-in Track Ball, with Optical Technology
• 2.4 GHz radio frequency, USB Receiver Connector. 
• 10 meters effective working range, farthest amount to 30 meters.
• 360-degree navigation, sleek and elegant design. 
• With notebook keyboard module enables handheld operation and effortless typing.
• Battery: AA batteries x 4 pcs,
• Frequency Tolerance: 2.4GHZ~2.483GH
• Channel: 8 Channel
• Channel I.D: 16bits, 65536 per channel
• Hot Keys: Pre-Page, Next-Page, WWW, E-Mail, My Computer, Pre-Track, Next-Track, Stop, Play/Pause, Mute, Volume-Down, Volume-Up
• Trackball: 25mm,  Optical Type, 800 DPI
• Non-skid rubber feet.
• Bounce Time: less than 10 msec.
• key-switch life : 10,000,000 cycles
• Keyboard is qualified using Hasco pneumatic life tester using soft cushion actuator with a 4 cycles / second actuation speed 120 ~ 150gf air pressure.
• OS supported :
  • Windows 2000, Windows  XP, Windows  Vista and  Windows  7 with Verification report
  • Linux ( except for windows hot keys)