USB Rechargeable Audio-Detection Spy Voice Recorder Disguised as Working Pen (TF Slot)

Pros: Yes, sound activation works. Excellent recording quality.
5 min record takes 1.2 Mb on memory card. So 1Gb card would hold more than 2 days of rec.

Cons: Very bad lame English in manual. Absolutely incomprehensible, obscure language. They would have asked Google, it would have translated better...
A bit heavy (28g). Heavier than ordinary pen.
Memory card is not included.

Other: Very convenient and sometimes useful for negotiations, learning sessions, for interpreters etc.

Pros: Excellent product, well built and seems to work. Tried various TF card and also works an 8 Giga

Cons: I could not record more than 15 minutes, incomprehensible manual, you can record continuously for HOURS and HOURS?

Other: only real drawback: Manual translated badly. It is not known if there is a possibility of an UPGRADE or support. Package is stated on the ability to record video using CAM, but obviously it is not the same product!