Cunsumption current:10mA Usage battery:9v batteries Four sections audioes choicde:A section 200Hz,B section 800Hz,C section 1200Hz,D section 2000Hz Measuring element sensitivity:-70db 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 Working temperature:-20°-50° Weight:140g Size:43*36mm 1.Listening through walls 2.Special pull back vechicle with secret listening device 3.Easy to listen all the action 4.High sense metal probe 5.Coming with earphone 6.Small as a jelly 7.Complete function:charge hole,earphone hole and switch knob upside 8.Easy operate,cling to the door,window or wall 9.Able to get the sound out from the wooden/brick wall, windows or door or armor plate 10.High sensitivity detector 11.Can be used for recording pen 12.How to use: Clockwise turn the master switch  to start the device Adjust the volume until you hear the sound clearly Package: 1xEar Listen Through Wall 1xEarphone 1xUSB cable
Trustpilot
2 days ago
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