ipad1 ipad2 ipad3 plastic BT keyboard

1)Bluetooth 3.0interface                             
2)oprating current:4MA                               
3)oprating voltage:3.7V                                              
4)Li-ion battery capacity:280mAH                 
5)Sleeping current:200uA                             
6)charging current:200mA                              
7)charge time:2Hours                                     
8)standby time:90days                         
9)uninterruped working time:100hours
10)SIZE:24*12.5*0.6CM                                  
11)weight：150G                                                        
12) have 84 play key                                        
13) can fit for with PU case or use with ipad alone