A tiny spy camera that is smaller than any we have seen yet measures a mere 2.6 x 2.2 x 1.8 cm and can transmit both audio and video on the 2.4Ghz frequency at a range of around 300 feet. This kind of technology doesn’t come cheap, it lists for £399.00 at iwantoneofthose.com and is called the StealthCam.

Reader scubasteve sent us a note about a similar sized spy cam available on ebay for much less, under $40 USD, but they only transmit video and it is unclear as to what frequency it uses.