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. The highest sensitive contact microphone available with superior detection ability using best quartz crystal piezo.įeatures and Specifications Penetrable surfaces:Ĭement, Metal, Wood, Iron, Glass, Plastic, Brick High quality earbuds a built in lithium battery and all accessories needed to achieve the job. Enhanced quality sound and performance capable of listening to conversations in adjoining rooms and houses. Wall ear is a highly sensitive contact and probe microphone amplifier system.īoth microphone and amplifier are built into a strong metal housings for durability. Wireless Audio GSM Listening Spy Bug Transmitter & Sound Recorder in Double Wall Socket with Dual USB Phone Charger. Wireless GSM Listening Device & Sound recorder In Dual USB Wall Socket Charger. Another serious matter is the headphones used, included is good quality earbuds but if you use noise cancelling headphones improves the sound hugely. Mini Magnetic GPS Tracker & Audio Listening Device with Built-in Sound Recorder. LISTENING DEVICE The CIA planted thi fake stump near a Soviet airbase in the. Unless it is faulty not hearing through doors, windows, internal walls etc. SPY THAN TO CLAIM retirement and run a museum E. Anything else is not guaranteed and returns for using this beyond it's means is not accepted. It will hear audible sound through any door or single brick / cavity walls. You may need to experiment further with the position for better results and we can not guarantee results first time every time. Place the Sonde contact microphone to the surface of interest and listen it has variable gain and volume settings. We have received varied results as it depends entirely on the surface you use and many other factors such as distance and volume. Some surfaces work better than others and density / thickness can also restrict its performance.

The ultimate professional listen through wall system that can hear sound through concrete, metal, wood, brick in fact any solid surface. Disclaimer: This product is sold to listen for such things as water leaks, rodents and more.

Microphone spy listening device