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Portable Laser Microphone System

Compact laser‑vibrometry listening device, performing non‑contact remote audio capture for covert intelligence‑gathering missions.

Laser Vibrometry Remote Audio Capture Covert Listening
Portable Laser Microphone System scene diagram: portable laser‑vibrometry unit, electric pan‑tilt, invisible laser beam targeting building window for remote audio acquisition.

Overview

Portable Laser Microphone System. Compact man‑portable laser vibrometry device for covert non‑contact audio acquisition. It detects tiny surface vibrations via laser reflection and reconstructs voice audio. Suited for investigative scenarios where physical microphone placement cannot be performed, supporting mid‑range remote listening up to 100 meters.

Highlight Features

Laser‑Vibrometry Non‑Contact Pickup Recover audio by measuring micro‑vibrations on target surfaces, no physical device placed inside monitored premises.
Medium‑Long Operational Range Effective audio pickup at 50 m, maximum working distance up to 100 m with strong anti‑interference performance.
Electric Pan‑Tilt & Auto‑Focus Motorized aiming platform; one‑click auto‑focus, fast target‑point positioning for rapid field deployment.
Multi‑Level Adaptive Noise Reduction Self‑developed multi‑stage voice‑noise‑reduction algorithm, delivering clear audio under complex field conditions.
Wireless Remote Operation Wi‑Fi link for remote control via handheld display / mobile terminal, improving operator safety for covert tasks.
Broad Compatibility for Target Surfaces Works on multiple vibrating cavity‑type scattering materials such as glass and thin panel structures.
Light‑Weight Individual‑Portable Unit Compact host ≤2.5 kg, dust‑proof optical assembly for single‑person carry and minute‑level setup.
Built‑In Long‑Duration Battery Integrated rechargeable battery, runtime over 3 hours for continuous field‑site covert operations.

Specifications

Key Brief Parameters

  • Working distance: 5‑100 m; effective pickup distance: 50 m typical, max up to 100 m
  • Host dimension & weight: 220×95×95 mm, ≤2.5 kg; electric pan‑tilt aiming, auto‑focus supported
  • Field‑of‑view:15°×11°, working angle ±5°; control via Wi‑Fi wireless link
  • Power: built‑in 12.6 V rechargeable battery, continuous working time >3 h
  • Operating temperature: 0 ℃ ~ 40 ℃, dust‑proof optical packaging