VLF stands for Very Small Frequency and is similar technologies Utilized in detectors built for cash, jewelry, and relics. VLF detectors broadcast at frequencies calculated in kilohertz ranging from three kHz to 70 kHz. Here i will discuss 5 reasons why you could possibly choose a VLF in excess of http://family.bigbrother.bg/forum/topic_show.pl?tid=238942;msg=NewPost;sid=9e961f25ee0fc1cc803690bbc04e8e1f