MDalong Z21-128GB-BK Voice Recorder User Manual

Introduction

This manual provides comprehensive instructions for the MDalong Z21-128GB-BK Voice Recorder. Please read this manual carefully before using the device to ensure proper operation and to maximize its features. Keep this manual for future reference.

The MDalong Z21-128GB-BK is a compact, high-capacity digital voice recorder featuring 128GB of internal storage, DSP Triple Noise Reduction, and voice-activated recording. It supports MP3 audio recording at 3072kbps and offers broad compatibility with iPhone, Android, and PC devices for file management.

Package Contents

Please check the package for the following items:

• MDalong Z21-128GB-BK Voice Recorder
• USB Type-C Cable
• User Manual (this document)
• (Optional) Headphones
• (Optional) Lanyard

Product Overview

Familiarize yourself with the device's components and controls.

Image: Diagram of the MDalong Z21-128GB-BK Voice Recorder showing its various parts and controls.

1. HiFi Speaker: For audio playback.
2. REC Switch Position: Slide to this position to start recording.
3. SPK Switch Position: Slide to this position for playback mode.
4. OFF Switch Position: Slide to this position to turn off the device.
5. Type-C Port: Used for charging and connecting to a computer or mobile device.
6. Lanyard Hold: Attachment point for a lanyard.
7. Volume Up / Previous Track / Pause Button:
   • Long Press: Increase Volume
   • Quick Press (once): Go to Previous Song/Recording
   • Quick Press (twice): Pause/Play Playback
8. Volume Down / Next Track / Mode Switch Button:
   • Long Press: Decrease Volume
   • Quick Press (once): Go to Next Song/Recording
   • Quick Press (twice): Switch between Music and Recording Playback Mode (when playing recordings)

Setup

1. Charging the Device

Before first use, fully charge the voice recorder. Connect the supplied USB Type-C cable to the device's Type-C port (5) and the other end to a USB power adapter (not included) or a computer's USB port.

Image: The voice recorder connected via USB-C for charging, illustrating its long battery life.

A full charge provides approximately 72 hours of continuous recording or up to 90 days of standby time.

2. Powering On/Off

• To Power On: Slide the switch to the "REC" or "SPK" position.
• To Power Off: Slide the switch to the "OFF" position.

3. Time Synchronization (Factory Setting)

The device's time is typically synchronized at the factory. If you need to adjust the time or ensure it's current, connect the device to a computer. The manual indicates that time can be selected and synchronized via an F5 key press on a computer, suggesting a specific software or file interaction. Refer to the advanced settings section for more details if available through the device's file system when connected to a PC.

Operating Instructions

1. Recording Audio

To start recording, slide the switch to the "REC" position (2). The device will begin recording immediately. To stop recording, slide the switch to the "OFF" position (4). Recordings are automatically saved.

Image: The MDalong voice recorder, demonstrating its compact size and the digital interface for managing recorded files on a smartphone.

2. Voice Activated Recording (VOR)

The device features a Voice Activated Recording (VOR) function, which starts recording automatically when sound is detected and pauses when silence occurs, saving storage space. This feature utilizes DSP Triple Noise Reduction to minimize ambient noise.

Image: The voice recorder highlighting its voice-activated recording feature and 7-level sensitivity adjustment for noise reduction.

Adjusting VOR Sensitivity: The device offers 7 levels of voice control sensitivity (VOR). Level 0 is off, and levels 1-7 are on. A higher number indicates greater sensitivity to sound. This setting is typically adjusted by connecting the device to a computer and modifying a configuration file (e.g., VOR:0-7).

Noise Reduction: The AI-Triple Noise Reduction Chip intelligently reduces ambient noise by up to 90% for clearer recordings.

3. Playback

To play back recordings, slide the switch to the "SPK" position (3). Use the Volume Up/Previous Track (7) and Volume Down/Next Track (8) buttons to navigate and control playback.

• Increase Volume: Long press button (7).
• Decrease Volume: Long press button (8).
• Previous Recording/Song: Quick press button (7) once.
• Next Recording/Song: Quick press button (8) once.
• Pause/Play: Quick press button (7) twice.
• Switch Mode (Music/Recording): Quick press button (8) twice (when playing recordings).

Recordings can be played through the built-in HiFi speaker (1) or via dedicated headphones (if connected to the Type-C port with an adapter, or if the device has a separate headphone jack not explicitly shown but implied by "Dedicated Headphones").

4. Connecting to Computer/Mobile Device

The MDalong Z21-128GB-BK is compatible with iPhone, Android phones, and PCs for viewing, playing, and transferring recording files.

Image: Steps for connecting the voice recorder to iPhone and Android devices to access and manage files.

For PC Connection:

1. Connect the device to your computer using the USB Type-C cable.
2. The device will appear as a removable disk.
3. Navigate to the "RECORD" folder to find your WAV format recording files.
4. You can copy, move, or delete files as needed.

For iPhone Connection (via Lightning adapter, not included):

1. Connect the recorder to your iPhone using a compatible Lightning adapter (not included).
2. Open the "Files" app on your iPhone.
3. Click on the "NO NAME" drive of the recorder.
4. Click the "RECORD" folder to play your recording files.

For Android Connection (via Android adapter, not included):

1. Connect the recorder to your Android phone using a compatible adapter (not included).
2. Open the "Files" app on your Android phone.
3. Click on the "ACTIONS USB drive".
4. Click the "RECORD" folder to play your recording files.

5. Advanced Settings (via PC Connection)

When connected to a PC, you may be able to access and modify advanced settings by editing a configuration file on the device. These settings include:

• TIME: Synchronize device time (e.g., "TIME:14:50 2024/2/22").
• BIT: Bit rate settings for recording quality (e.g., 1-32k, 2-64k, up to 9-1536k).
• GAIN: Recording sensitivity (1-7). Higher number means greater sensitivity.
• PART: Recording segmentation (10-240 points). This likely refers to how often recordings are split into new files.
• VOR: Voice control settings (0=off, 1-7=on). Higher number means more sensitive voice activation.

Caution: Modifying these settings incorrectly may affect device performance. Proceed with care.

Maintenance

• Cleaning: Use a soft, dry cloth to clean the device. Do not use liquid cleaners or solvents.
• Storage: Store the device in a cool, dry place away from direct sunlight, extreme temperatures, and humidity.
• Battery Care: To prolong battery life, avoid fully discharging the device frequently. Charge it regularly, even if not in use for extended periods.
• Data Backup: Regularly back up important recordings to your computer or another storage device to prevent data loss.
• Avoid Impact: The device is small and portable; handle it with care to avoid drops or impacts that could damage internal components.

Troubleshooting

Specifications

Note: The product specifications listed "1 AAA batteries required. (included)". However, product images and descriptions indicate a rechargeable battery with a Type-C charging port. This manual assumes a built-in rechargeable battery based on visual evidence and common device design.

Warranty and Support

MDalong products are designed for reliability and performance. For warranty information, technical support, or service inquiries, please refer to the contact information provided with your purchase or visit the official MDalong website.

Please retain your proof of purchase for warranty claims.