| 产品规格︰ | This article system request:Standard port of the IBM computer PS/2 or the USB keyboard mouses, be applicable to the operate system of Windows Me/2000/ XP
．Keyboard specification parameter of RF658
．Dimension K：460*195*28mm
．Weight K：662g
．Switch Travel distance 3.0+0.4mm
．Rubber elasticity 50+6g
．Storage Temperature(c) -40~+50
．Storage Humidity 10%~85%RH
．Operating Temperature(c) ０～+50
．Operating Humidity 20%~90%RH
．Life Cycle 10，000，000 times
．Power Consumption 0.5Wstts Max
．Power Supply +3V+5%
．Power current Max300mA
．Biggest receive the distance 2m+10%
．Pack the size 475*215*40mm（Take the arm-rest）；
475*215*35mm（Don''t take the arm-rest）
．Receive the frequency 27.00MHZ+20PPM
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