An H.264 specific DVR viewer. Now android version 2.2 above have new feature, push notification and message center. Press menu button at DVR listview to add, edit or delete device. Select and click DVR name to connect and show. Press menu button at DVR view to switch High Quality or Low Quality mode, audio on/off, ptz controll on/off(single channel mode), and playback. Scroll left to switch to next channel(1CH mode) or next page (4CH mode). Scroll right to switch to previous channel(1CH mode) or previous page (4CH mode). Double click to switch 1CH/4CH mode. Tap screen to show/hide Relay control.