LED for bluetooth connection                                 Bluetooth V3.0, support Apple & Windows system                                                             
The wireless bluetooth keyboard
1) Product instruction System Support: windows/ipad/iphone
2)Electrical specification﹕
  A. Working  frequency: 2.400GHz-2.483GHz
  B .Working distance: 10m
  C .Battery : 7#(AAA)* 2
  D. Working voltage: 1.8V-3.3V
  E. Working current : <2mA @ 3V
  F.  Sleeping current : <50uA @ 3V
  G. Sleeping model: The keyboard automatically enter sleep mode when you are not using in 20 minutes.
  H. Sleeping waking way: To press any key
3)   I.key volume: 78 Keys
The mainly material for the key:ABS  
 4.Working way: Thin film switch
5. Ambient temperature                 
A.In operating status: 5℃～50℃
B.When saving status: -20℃～65℃
6.Relative Humidity
A. In operating status : 10%～85% RH   25℃   B.In saving status: 10%～95% RH   25℃