Cellphone Detector TBGHz - Detection of Smart-Phones in Use : 4G,4G LTE

when you receive your Mantaray and open the box you should see the unit along with accessories such as batteries a QuickStart guide and an SD card that includes some demo videos such as this one you are watching before turning on your Mantaray you must insert a 9-volt battery Mantaray includes two alkaline 9-volt batteries to get you started but you may use any brand or type of 9-volt batteries including nickel metal hydride and lithium-ion unscrew the back cover and carefully attach the battery to the battery plate be aware of the polarity of the tabs and do not force anything the batteries should fit snugly into the battery plate and into the manta ray handle replace the back cover and tighten the screw you will need to hold the orange trigger on your manta ray for about two seconds to power the unit the same is true for powering off the unit manta ray is very sensitive to magnetic fi