A new spy gadget is claiming the title of the world's smallest digital video recorder.

The Marlin SpyPen looks like an ordinary pen but is a hi-tech hidden digital video camera, complete with "super-sensitive" hidden microphone that can record conversations from up to 15 feet.

Available in 2GB and 4GB models, the Marlin SpyPen offers real-time recording in AVI video format.

The device connects to a PC or laptop via USB, the full-colour digital video recorder in the SpyPen offers read/write speeds of 900K/700K per second and records in a resolution of 300k pixels.

Measuring 15 x 1.5 x 1.5cm, and weighing less than 30 grams, the pen charges via USB offering 2 hours on a single charge.

Complete with leather gift box, the Marlin Spy Pen is available online now for £39.99 for the 2GB version and £49.99 for the 4GB model.