The MQ-U350 is a compact USB voice recorder designed to capture conversations and ambient sounds with simplicity and discretion.
It features two recording modes: continuous recording and sound activation (SVOS). In sound-activated mode, the device records only when sound is detected and automatically switches to standby after 1 minute of silence, optimizing both battery life and storage.
Its USB stick design makes it easy to use without complex setup. Date, time, audio quality, and sound detection sensitivity can be configured through the built-in program (Windows only).
Accessing recordings is straightforward. Simply connect the device to a computer to view, copy, or delete files just like a standard USB drive. Recordings can be played on both Windows and Mac systems.
The device offers up to 32 hours of continuous recording on battery and up to 25 days of standby time in sound activation mode. When powered via USB, it allows extended recording without battery limitations.
Each recording is automatically timestamped with date and time for easy file management and organization.
Specifications
Dimensions: 68 x 21 x 11 mm
Weight: 14.7 g
Form factor: USB stick
Recording modes: continuous or sound-activated (SVOS)
Audio format: MP3
Memory: 8GB / 16GB / 32GB
Continuous recording battery life: up to 32 hours
Standby battery life (sound activation): up to 25 days
Battery: Li-Polymer 180 mAh
Charging time: approx. 2 hours
Operating temperature: 0°C to 40°C
Maximum number of files: 9,999
Timestamp: date & time included
Additional Features:
- Smart voice activation with automatic standby and resume recording
- Files automatically split into 5-hour segments
- Adjustable audio quality (HQ / XHQ)
- Adjustable sound detection sensitivity levels
- LED indicator for charging and recording status
- Extended recording possible via USB power
Important Notes:
- Initial configuration requires Windows (not available on Mac)
- FAT32 format is required for proper operation
- Deleted or formatted data cannot be recovered
- Always use safe removal when disconnecting from a computer to prevent data loss