If you're looking for a way to amplify the sounds around you, this is the perfect device for you! The Sound Amplifier Microphone Wall Listening Device is a small, discreet device that can be placed on any wall in your home.

• High-sensitivity detection of the sound of walls, windows, doors, or armor plates, with earphones attached, the sound quality is precise.
• Easy to operate, close the door, window, or wall, adjust the volume until you hear a clear sound, and easily listen to all sounds in one step.

Specifications:
Measuring Range: Within 1m/3.28ft
Measurement Object: Underground Pipe Hide in The Wall
Working Temperature: -10℃~50℃
Power Supply: Built-In Lithium Battery
Packing Size: 150 X 95 X 43mm/5.91 X 3.74 X 1.69"

What's in the Box:
1x Sound Amplifier Microphone Wall Listening Device
1x Earphones