Hear Through Wall Wall Listening Device Voice

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Description:

HY929 High Strength Wall Microphone Voice Listen Detector for Engineer Water Leakage Oil Leaking Hearing for Repair
Works on wooden walls, doors, windows, steel plates, etc.
Highly Sensitive, carefully adjust audio slowly, as not to cause discomfort to your .
This audio gadget works by amplifying the vibrations of audio.
When people are talking in a room their voices are simply a waveband, and depending on how loud they are talking, the waveband travels short and long distances which are picked up and amplified by this device.
The volume of the sound can be adjusted, including probes, probes, built in batteries, etc., which can be used repeatedly. This product is being sold as an investigative tools for law enforcement or licensed investigators

Specification:

Model: HY929
Material: ABS Metal
Current Consumption: 10mA
Battery: battery 3.7V batteries
Probe Sensitivity: 10 db
Maximum Audio : 20000X
Answering method: Headphones or can be connected to 16 speakers

Size Chart:

Size: approx. 6x4x2cm /2.36x1.57x0.79inch

Package Includes:

1 Piece Detector
1 Piece Plug (UK)
1 Piece Circular probe
1 Piece probe
1 Piece USB Cable
1 Piece Headphone
1 Piece Manual

Note:

1. Please allow slightly error due to manual measurement.
2. Due to the difference between different monitors, the picture may not reflect the actual color of the item.
3. Wish you a wonderful online shopping!

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