The 4 Gig USB Spy pen.

 Series: Multiple function Spy pen Camera 
 8Gig Storage
 Dimensions: 14cm x 2.2cm x 1.5cm (L x W x   Diameter) . 
 USB 1.0. Plug and Play
 USB  Compatible
 Supports Windows 98/me/2000/Xp/2003/Vista 
 Real time recording in AVI video   format 
 you can  record  for 2 to 3 hours
 Video file size: >500KB per min/352X288
 Built-in rechargable Battery type : Lithium-ion 
 Adaptor type: USB   adaptor charging cable 
 Voice recorder 
 Video Recoder And Photo Mode
 Smallest Pin-hole Camera made   especially for spy use. 
 Easy to use "one touch record" button lets you   record any evidence instantaneously