I Turn Mobile phone into a powerful metal detector, Amazing

#inventor_Rida #metal_detector #turn_phone_into_a_metal_detector #how_make_metal_detector #making_gold_detector #making_metal_detector #turn_mobile_phone_into_a_gold_detector Very Nice invention For you: turn Speaker into a metal detector turn LNB into a metal detector turn radio into a metal detector turn cd disk into a metal detector turn water into a free Gas