.High Strength Through Wall Microphone Voice Listen Detector For Engineer Water

--\n--\n--\n--\n--\n--\n--\n--\n--\n--\n--\n--\n--\n--\n--\n--\n--\n--\n\nFeature: \n 1. High sensitivity, strong penetration, the penetratingpower is increased several times, and the sound quality is greatly improved.\n2. It can be connected to the display spectrum, recording pen, transmitter, wireless equipment, etc. , and can also be inserted into the two channel wire to record directly.\n3. Small and light weight for easy carrying.\n4. Easy operate, cling to the door/window/wall, adjust the sound with the knob until you hear a clear sound.\n5. Able to get the sound out from the wooden/brick wall/window/door.\n6. Effectively filter noise and detect sound quicker. \n\nSpecification: \nSpecifications:\n\nColor: black\n\nCunsumption current:12mAh\n\nProbe sensitivity: -60dB\n\nWorking time: 5-7h\n\nBattery: 3.7V, 100mAh\n\nItem size: 37 * 34 * 27mm / 1.5 * 1.3 * 1.1in\n\nItem weight: 25g / 0.9ounce\n\nPackage List: \n 1 * Voice Listen Detector\n\n1 * Earphone\n\n1 * USB Cable\n\n1 * -