Complete function:charge hole, earphone hole and switch knob upside. Easy operate, cling to the door, window or wall.
Able to get the sound out from the wooden/brick wall, windows or door or armor plate. Can be used for recording pen. Clockwise turn the master switch to start the device.
Adjust the volume until you hear the sound clearly. Highest audio enlargement multiple:20000X.Penetrate sex:Cement wall, steel wall, wood wall, Iron wall, glass, cavity brick. Monitor style:Earphone, can outside meet speaker. Record style:Have export hole can outside meet record. The item "Ear Listen Through Wall Device Bug Eavesdropping Wall Microphone Voice Spy USA" is in sale since Monday, July 22, 2019. This item is in the category "Consumer Electronics\Other Consumer Electronics". The seller is "ewead85-8" and is located in Bell, California. This item can be shipped to United States.