• Detection capability: Device should detect wireless audio bugs, hidden microphones or transmitters — ideally covering a wide frequency range (e.g., 10 MHz to 10 GHz) for modern threats.

  • Display & alerts: Visual indication (LED/bar‑graph), audible alerts/headphones and clear interface to pinpoint location of hidden audio devices.

  • Portability & ease‑of‑use: Handheld design, battery‑powered, ergonomic so operator can sweep rooms, walls, furniture effectively.

  • Spectrum coverage & sensitivity: The wider the frequency band and the higher the sensitivity, the more types of bugs/transmitters it can detect. Example: one model covers 10 MHz‑10 GHz.

  • Local support & calibration: Since you’re in Pakistan, check that the vendor provides warranty, calibration, support and replacement parts locally.

  • Legal/operational aspects: Ensure use complies with Pakistani law (surveillance laws, privacy laws); choose a device suited to your operational environment (rooms, vehicles, border zones etc).

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