Boutique Sound Picking Up Amplifier Wall Listening Earthquake Building Landslide Search and Rescue Instrument Wall Listening Device, HY929 Player Version (Standard Edition) - Product Features
- Highly sensitive partition audio monitor for listening to audio on the other side of walls.
- Inputs for Recording Devices, Portable Device, Built by Generic.
- Can Penetrate: Cement, Steel, Iron, Glass, Wood, and Brick.
- Easy to use and appropriate for consumers and professionals.
- Max Audio Amplification up to 20000x.
- Warranty not applicable for this product