Known manufacturer Unusual Gadgets Thanko released a new, improved model of the spy camera pen, introduced last year. Device Slim Video Pen HD is now save energy and begins to record only when motion sensor is triggered.

The recorded video is saved in AVI format on microSD memory cards. Handle supports memory cards up to 32 gigabytes. The video resolution is 1280 x 960 pixels at 30 frames per second. The half-hour recording takes approximately 1 GB of memory.

The footage can be transferred to a computer via the microUSB-port version 2.0. Built-in battery is able to "survive" for about 75 minutes when working.

New enhanced knob can be purchased on the official website wiseup for $ 61.