1. Introduction
Thank you for choosing the MECHEN V02 Digital Voice Recorder. This device is designed for high-quality audio recording with advanced features for various applications, including interviews, classes, and meetings. Please read this manual carefully to understand the product's functions and ensure proper use.
Package Contents
- 1 * MECHEN V02 Digital Voice Recorder
- 1 * USB-C Cable
- 1 * Earphones
- 1 * User Manual

The MECHEN V02 features 128GB of internal memory, eliminating the need for an SD card. It supports both MP3 and WAV recording formats, offering flexibility between recording duration and audio quality. The robust zinc alloy casing ensures durability.
2. Setup
2.1 Initial Charging
Before first use, fully charge the device. Connect the MECHEN V02 to a computer or a USB power adapter using the provided USB-C cable. A full charge typically takes approximately 2 hours.

2.2 Power On/Off
- To Power On: Slide the power switch to the 'ON' position.
- To Power Off: Slide the power switch to the 'OFF' position.
2.3 Basic Controls Overview
Familiarize yourself with the main buttons:
- REC Button: Starts recording.
- STOP Button: Stops and saves the current recording.
- PLAY Button: Starts/pauses playback.
- MENU Button: Accesses settings and options.
- Volume +/- Buttons: Adjusts playback volume.

3. Operating Instructions
3.1 One-Touch Recording
To start recording quickly, simply press the REC button. The device will begin recording within seconds. Press the STOP button to end and save the recording.
3.2 Voice Activated Recording (VOR)
The VOR function allows the recorder to start recording automatically when sound is detected and pause when there is silence, saving memory and battery life. To activate VOR:
- Go to the MENU settings.
- Navigate to the VOR option and select 'ON'.
- Adjust the VOR sensitivity level (1-7) as needed. Higher sensitivity detects quieter sounds.


3.3 Noise Reduction
The MECHEN V02 features hardware DSP noise reduction to effectively minimize background noise, providing clearer voice recordings even in moderately noisy environments. This feature is automatically active during recording.

3.4 Timed Recording
Set the device to record automatically at specific times:
- Access the MENU and find the 'Timed Recording' option.
- Configure the start time, end time, and frequency (e.g., daily, once, weekdays).
- Ensure the device has sufficient battery life for scheduled recordings.

3.5 Segment Recording
This feature allows you to automatically split long recordings into smaller, manageable segments (e.g., 30, 60, 90, or 120 minutes). This can be useful for organizing long lectures or meetings.

3.6 Line-In Recording
The MECHEN V02 supports line-in recording, allowing you to record audio directly from external sources such as smartphones, MP3 players, tablets, laptops, or CD players. Connect the audio source to the recorder's line-in port using an appropriate audio cable (not included).

3.7 Playback and A-B Repeat
To play back recordings, navigate to the file list and press the PLAY button. The A-B repeat function allows you to loop a specific section of an audio file:
- During playback, press the A-B repeat button to set point A (start).
- Press it again to set point B (end). The section between A and B will loop.
- Press it a third time to exit A-B repeat mode.

3.8 Volume Control
To adjust the volume during playback, press and hold the MENU button, then use the Volume + and Volume - buttons.

3.9 Screen Lock/Unlock
To prevent accidental button presses, you can lock the screen:
- To Lock: Perform a long press on the designated lock button (refer to device interface).
- To Unlock: Perform a short press on the designated lock button.

3.10 Password Protection
Protect your private recordings by setting a 4-digit password:
- Go to the MENU settings and select 'Password Protection'.
- Follow the on-screen prompts to set your 4-digit password.
- Remember your password, as there may not be a recovery option.

3.11 File Management
Recordings are automatically named based on the date and time, making them easy to locate. You can delete files directly from the device or by connecting it to a computer.
- On Device: Navigate to the file list, select the desired file, and choose the 'Delete' option from the menu.
- Via Computer: Connect the recorder to your computer using the USB-C cable. The device will appear as a removable disk. You can then drag and drop files or delete them as you would with any other storage device.

3.12 Portable Music Player
The MECHEN V02 can also function as a portable music player. It supports various audio formats including MP3, WAV, APE, WMA, and FLAC. You can transfer music files to the device and enjoy them using the included earphones.
- Features: Repeat, Shuffle, Equalizer, Variable Speed Playback, Bookmarks.

4. Maintenance
4.1 General Care
- Keep the device dry. Avoid exposure to moisture or liquids.
- Do not expose the device to extreme temperatures (hot or cold).
- Clean the device with a soft, dry cloth. Do not use harsh chemicals or solvents.
- Avoid dropping or subjecting the device to strong impacts.
4.2 Battery Care
- Charge the device regularly, even if not in use, to maintain battery health.
- Avoid completely draining the battery frequently.
- If the device will not be used for an extended period, charge it to about 50% before storing.
5. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Device does not turn on. | Low battery; Power switch off. | Charge the device; Ensure power switch is in 'ON' position. |
| Cannot record. | Memory full; Device locked; Incorrect mode. | Delete old files; Unlock the device; Check recording settings. |
| Poor recording quality. | Microphone too far; High background noise; Low bitrate setting. | Move closer to sound source; Ensure noise reduction is active; Increase bitrate in settings. |
| Cannot connect to computer. | Faulty USB cable; Driver issue; Incorrect port. | Try a different USB-C cable; Try a different USB port on computer; Restart computer and device. |
| Screen is unresponsive. | Screen locked; Temporary software glitch. | Unlock the screen; Restart the device. |
6. Specifications
- Brand: MECHEN
- Model Number: V02
- Memory Capacity: 128 GB
- Recording Formats: MP3, WAV
- Max Recording Bitrate: 1536 kbps (WAV)
- Compatible Devices: MP3 Player
- Hardware Interface: USB-C
- Headphone Jack: 3.5 mm
- Battery: 1 x 12V battery (included)
- Product Dimensions (DxWxH): 109 x 12 x 26 mm (4.3 x 0.5 x 1.0 inches)
- Microphone Operation Mode: Stereo
Recording Time Reference (with noise reduction activated)
| Format | Bitrate | Recording Time (approx.) |
|---|---|---|
| MP3 | 32kbps | 38 Hours |
| 64kbps | 35 Hours | |
| 128kbps | 32 Hours | |
| 192kbps | 29 Hours | |
| WAV | 512kbps | 22 Hours |
| 768kbps | 9.5 Hours | |
| 1024kbps | 9 Hours | |
| 1536kbps | 9 Hours |



7. Warranty and Support
7.1 Warranty Information
This product comes with a standard manufacturer's warranty. Please refer to the warranty card included in your package or contact customer support for specific details regarding warranty duration and coverage.
7.2 Customer Support
If you encounter any issues or have questions about your MECHEN V02 Digital Voice Recorder, please contact our customer support team. Contact information can typically be found on the product packaging, the official MECHEN website, or through your retailer.





