This pocket size portable video player/recorder has a built in 40GB hard disk & 3.5" LCD backlit screen. Its compatible with our entire range of wireless & wired cameras or can simply be used as an additional hard drive for a PC. 3.5 inch TFT screen 2.5 inch 40GB HDD Full function OSD control USB (Universal Serial Bus) 2.0 interface Downloadable firmware Li-Ion battery Remote control Earphone jack Built-in Microphone 1 Year guarantee MP-4 Video Recorder & Player The PV390 can record any audio / video resources & covert them in real-time into near-DVD quality MP4 Video & store them into its built-in 40GB HDD (Over 80 Hours MP4 video recording). Playback & enjoy the near-DVD quality MP-4 Video can be easily done anytime, anywhere, via it's built-in 3.5” LCD or connected to TV or projector. Digital Voice Recorder & MP3 Music Player The PV390 can record voice via its built-in microphone & store in its hard disk. Voice data can be archived to PC via device's built-in USB (Universal Serial Bus) 2.0 interface. All your favorite MP3 Music collections can also be transferred to PV390 via USB (Universal Serial Bus) 2.0 connection from PC, & enjoy the MP3 music at anytime, anywhere. Digital Photo Viewer & Digital Photo Wallet The PV390 can also store digital photo files & display them from its built-in large 3.5” LCD screen or TV or projector. Digital photo can also be archived to PC or vice versa via it's built-in USB (Universal Serial Bus) 2.0 connection. As a digital wallet, Joycoder can store up to 100, 000 pieces of high-resolution digital photos (1600x 1200 pixels). Microsoft Power Point files can also be converted into JPEG files & store in Joycoder™, then playback easily via its built-in LCD screen or external TV or projector. Data Storage Center By utilizing its high capacity built-in 40GB Hard Disk, PV390 also works as a data storage center to store all types of PC files & transfer them to another PC via USB (Universal Serial Bus) 2.0 connection.