MQ-A320/C320 – Elite USB Stealth Recorders

The MQ-A320 and MQ-C320 represent the next evolution in professional-grade “plug-and-play” surveillance. Designed to look and function as standard USB storage devices, these recorders provide a high-security solution for capturing audio evidence in plain sight.

Whether you are in a modern office using the latest laptops or a traditional workspace with standard desktops, these two models ensure you have the correct interface for instant, covert deployment.

Esonic MQ-A320: The Classic USB Interface

The MQ-A320 is the standard for traditional workstations and legacy hardware. It features a classic USB Type-A connector, making it indistinguishable from a normal thumb drive found in any office or home.

• Universal Camouflage: It plugs into standard PC ports, car chargers, and smart TVs without raising a single question.

• Tactical “Blind” Operation: Features a discreet physical switch that allows you to start recording by feel alone while the device is in your pocket.

• Continuous Power: While it has an internal battery, it can record indefinitely when plugged into a powered USB port, effectively turning it into a permanent room monitor.

Esonic MQ-C320: The Modern USB-C Sentinel

The MQ-C320 is engineered for the modern era. Featuring a USB Type-C connector, it is designed for the latest generation of MacBooks, iPads, and high-end Android smartphones.

• Smartphone Integration: The USB-C connector allows you to plug the recorder directly into your phone for immediate playback and file management—no computer required.

• Magnetic Deployment: The C320 often includes a magnetic internal body, allowing you to “snap” it to the underside of a metal desk, filing cabinet, or car seat in less than a second.

• Future-Proof Security: As USB-A becomes obsolete, the C320 remains the most natural-looking accessory for modern tech users, blending in perfectly with contemporary mobile gear.

Comparison: MQ-A320 vs. MQ-C320

Core Security Features: Why They Are Hard to Detect

1. Air-Gapped Privacy: Neither device uses Bluetooth, Wi-Fi, or cellular data. They are physically isolated systems that cannot be hacked or detected by network monitoring software or RF signal scanners.

2. Visual Stealth: There are zero blinking lights, LCD screens, or audible beeps during the recording process. To any observer, the device is simply a piece of plastic and metal sitting idle.

3. SVOS (Super Voice Operated System): Both models use advanced sound detection that only records when human speech is present. This doesn’t just save battery—it saves you from hours of listening to silence, providing a curated log of important events.

4. Forensic Quality: Both support Linear PCM recording—a high-resolution, uncompressed format that ensures voices are clear enough to be used as legal or professional evidence.

Choose the MQ-A320 for maximum standby time and compatibility with traditional office hardware. Choose the MQ-C320 for modern environments where you need the ability to review recordings instantly on your smartphone.