4GB USB2.0 SPY Pen color Video and Voice Camcorder Recording with Pixel Drive Cam Camera Pin-hole Camera DVR (up to 20 hours Video recording)Tiny size makes it ideal for variety of uses It's great for use as hidden cam, interview cam, etc. Work as a USB drive (no driver needed)Real time recording in AVI video format it can be used for writing also Built-in rechargeable battery Playback video on PC Battery recording time:About up to 2 hours. Manufacturer's suggested retail price USD $113.50