Covert USB Camera Pen - Mini Pinhole Color Security Camera with Built-in Micro Surveillance DVR & 4GB Internal Flash Drive CMOS pinhole camera and micro DVR built into a pen Looks and writes with a normal pen - no one will know you are actually recording Pen unscrews to reveal a USB drive that you can connect to your PC Stores up to 20 hours of video at a time, which can be archived on your computer Built-in Lithium polymer battery can be charged via USB or the included wall charger