... 4S, MAC 3.0, windows,Bluetooth Li-ion Batteryt Seenda Keyboard for galaxy tab uses a 650mAh rechargeable lithium polymer battery ... one seamless unit. t Function key: Main Screen/ Esc, Virtual keyboard, Search, Preview photo , Rotate, Doman, Alt, Copy, Paste, Cut, ... PrevTrack, Play/pause, Next/Track, Mute, Volume- ,Volume+, Lock screen.Keyboard Size and Weight t Height:0.8CM t Width: 26cm ...