Military & Police Control
0102030405
The Portable Ear Listens Wall Audio Listening Amplifier(herinafter called the ear listens)
Equipment introduction
The ear listens can monitor weak voice signals generated by contact surface such as concrete walls and reinforced steel walls in real-time.It consists of a microphone,a detection host,a headphone,a recording pen and a charger.
Through two high-sensitivity sensors fixed on the wall in the next room (cabin), the weak voice signals transmitted through the wall are picked up, filtered, amplified and digitally processed, and the voices are restored, stored and played back to achieve the purpose of obtaining intelligence. With clear sound quality and simple operation, it has been widely used in anti-terrorism, fire rescue, earthquake relief, reconnaissance and other aspects.
Equipment advantages
Easy to operate and highly portable;
High sensitivity, long detection distance, clear sound quality;
Dual-mode adjustment, adjust listening frequency range according to on-site conditions; Equipped with a balance adjustment button for adjusting the volume of the left and right channels;
The system is small size, light weight and has long continuous working time.
Main functions
Strong penetrability and high sensitivity detector, which can monitor weak voice signals in real time through cement walls, steel plates, etc.
Targets can be monitored in real time through headphones, and Bluetooth long-distance monitoring is supported.
Equipped with headphone and recording jacks, which can be connected to external recording equipment for synchronous recording.
Main technical indicators
|
SN |
Item |
Indicators |
|
1 |
Listening range |
Wall/steel plate thickness: ≤40cm |
|
2 |
Voice intelligibility |
1m from the sound source to the wall: ≥80% 3m from the sound source to the wall: ≥50% |
|
3 |
Continuous working time |
8h |
|
4 |
Equipment weight |
1kg |
|
5 |
Listening method |
wired headset, Bluetooth headset, recording and playback |
|
6 |
Size |
165mmx120mmx35mm |
Application scenarios
Anti-terrorism, fire rescue, earthquake relief,inspection