Line style appearance, suite THE humanity engineering * Simple designer, can be used for long time * Laser character ，it will not be wear away，high quantity, stable ,reliable capability with hull switching * Go on the net by one key, receive or sending email etc. total 19 functions, multi-medium keyboard * silent key, comfortable operation，use life reach 1000 myriad times or more * high speed RF contact wireless * Mini-wireless receiver, easy to be carried * Advanced technical for save power, let the power can hold on for long time * 9/13/19 multi-medium to be selected * Support multi-language System request >> * IBM?or compatible computer * Windows?98, 2000, Me, XP * USB or PS/2 interface * CD driver Products specification >> Length：560 MM Width：220 MM Height：25 MM Weight：720 g key activity parameter >> Maximum resilience：55? g key processing rang：3.5?.3 MM The pulling power of the key?s cover：>1kg Use life：1000 myriad times electricity capability>> Working voltage：+5VDC?0% Working carrent ：+5VDC times<30M