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Product description
This compact digital voice recorder from JUSTSTONE offers long recording capacity and simple controls for lectures, interviews and meetings. With up to 1600 hours of recording capacity on 128GB according to the manufacturer, it is useful for anyone who needs extended capture without frequent file management.
Key Points
The recorder starts and stops with a single slide switch, making operation straightforward during busy sessions. An audio-activated recording mode helps extend battery life by capturing only when sound is detected, which is convenient for long interviews or lecture notes. Noise reduction and an omnidirectional microphone work together to capture clearer speech in moderately noisy environments, improving intelligibility for later review. The device supports Type-C charging and can continue recording while connected to a power source, allowing uninterrupted use for extended events.
Technical Specifications
- Name: JUSTSTONE 128GB Digital Voice Recorder
- Storage: 128 GB (user accessible)
- Recording capacity: Up to 1600 hours (manufacturer specification)
- Battery: Rechargeable 250 mAh, typical full charge time under 2 hours
- Charging/connection: USB Type-C
- Microphone: Omnidirectional with digital noise reduction
How to Use It
To begin recording, slide the power switch to the ON position for a few seconds and the unit will start automatically. For hands-free operation, set the switch to the AVR position to enable voice-activated recording, which will start when sound is detected and stop during quiet periods. Files are timestamped automatically which simplifies locating specific recordings on a computer later. Charging is straightforward with Type-C, and the recorder can remain operational while connected to power, so prolonged sessions can continue without interruption.
Advantages
This JUSTSTONE model balances large onboard storage and simple controls for users who need reliable, long-duration recordings. The combination of audio-activated recording and automatic file naming reduces manual management and saves battery life during intermittent use. Consider that in very noisy or highly reverberant rooms extreme clarity may still require positioning the device closer to the speaker for best results. Additionally, the manufacturer lists the 1600 hours figure as an approximate capacity based on typical recording settings.









