... requiredSpecification:* Interface type: bluetooth 3.0 * Material: PU Leather case+ ABS surface * Keys Number: 53 keys, accurate keys, QWERTY ... layout * Material: PU Leather case+ ABS surface* Operation distance: up to10 meters * Micro usb ... Preview photo, Rotate, Doman, Alt, Copy, Paste, Cut, PrevTrack, Play/pause, Next/Track, Mute, Volume-, Volume+, Lock screen. Power Low ...