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🔍 Unlock the unseen — listen beyond walls like a pro!
The F999B Super Sensitive Listen Thru-Wall Contact/Probe Microphone Amplifier System is a professional-grade audio surveillance tool featuring ultra-sensitive -70dB sound detection, up to 2000x amplification, and a robust 3.7V lithium battery enabling 100 hours of continuous use. It supports four selectable frequency channels with wireless FM transmission for remote monitoring. Designed for diverse wall materials, it comes complete with a metal carry case, probe microphone, headphones, and recording accessories, making it ideal for discreet, high-precision audio monitoring.
| ASIN | B07MVZSR1P |
| Audio Input | 3.5mm Audio Cable, Wireless FM Emission |
| Best Sellers Rank | #1,396 in Home Security Systems |
| Connector Type | 3.5mm, Charging |
| Customer Reviews | 1.0 1.0 out of 5 stars (1) |
| Date First Available | January 16, 2019 |
| Is Discontinued By Manufacturer | No |
| Manufacturer | 754914036401 |
| Number of Channels | 4 |
| Power Source | Battery Powered |
| UPC | 754914036401 |
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