from the seller's web site...
The Micro-Camcorder is the smallest high resolution, real time digital camcorder ever produced. Easy to use "one touch record" button lets you discretely record any evidence instantly. For the most discrete application, the Micro Camcorder can even fit into a standard pack of chewing gum!
This Micro Camcorder records Hi-Resolution (3gp) real time (15fps) video via its internal pin hole camera at the touch of a button. Recordings are stored on a tiny removable Micro SD card. Up to 33 hours of video can be recorded on a 1Gb Micro SD card [2 hours at a time between recharging] Internal rechargeable battery is recharged via USB connection. (more & sample video)