Demonstration on ebay

[Esteban]

http://cgi.ebay.com/Colorado-Gold-Sticks-Metal-Detectors-Killer_W0QQitemZ300091179698QQcategoryZ67775QQrdZ1 QQcmdZViewItem


There are similars on ebay!!!

[hung]

This is an older model. I have a friend who bought the latest one. The frequency generator is on the box emitting a buzzing sound.