Super Highest Sensitive Listen Thru-wall 

Contact/probe Microphone Amplifier System

Penetrable surfaces: Cement, Metal, Wood, Iron, Glass, Plastic, Brick

Working time: Continuos monitoring up to 24 hours

Headphone output: 3.5mm stereo @ 250mW

Four audio channel: 1200Hz, 800Hz, 200Hz

Maximum gain amplification: 20000 times

Battery type: 3.7v lithium battery

Microphone sensitivity: -70db

Current consumption: 10mA

Record line output: 2.5mm stereo Jack socket

Battery capacity: 250mA

Package includes:

Sonde contact microphone

Probe / Needle microphone

Microphone / Headphone Amplifier

2.5mm-3.5mm stereo record lead

Charger and Metal case

Engelsk manual