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 Cordless combo specifications
  Key Switch:   Membrane switch with tactile feedback
  Palmrest:   No
  Metal plate:   Yes
  Receiver cable length:   1.2 meter
  Key Lifecycle:   10 million times
  Compatible:   Windows 98/2000/Me/XP
  Key Switch Operation Force:   55g±10g
  Receiver Connector:   USB
  Batteries:   2 AAA batteries for keyboard and 2 AAA for mouse, receiver direct from USB port
  Mouse resolution:   800DPI
  Sensor:   CMOS Optical sensor
  Batteries charger receiver:   Yes
  wireless 3D or 5D mouse:   5D or 3D
  wirless set:   wireless optical mouse+wieless keyboard