Overview: Tiny pin-hole camera hidden inside a working ball pen Simply one button operation (push to record, push again to stop)307, 200 pixels (640 480 px) video recording resolution USB (Universal Serial Bus) 2.0 data interface Built-in 4GB flash memory storage for massive amount of recording time (more a few hours, depending on the content of recordings) Doubles as a perfectly working pen USB (Universal Serial Bus) flash/jump drive Built-in microphone records sounds/voice along with video Built-in lithium battery recharged by the included AC adapter or any powered USB (Universal Serial Bus) port Battery records about 2 hours per charge Perfect for recording videos at dissatisfactory customer service counters 110V~220V AC USB (Universal Serial Bus) charger included USB cable & software/driver CD included Specification: Dimensions: 5.91 in x 0.6 in x 0.6 in Weight: 5.71