Introduction
Thank you for choosing the Aigo MP3-105 PLUS Hifi Music Player. This portable audio device is designed to deliver high-fidelity sound with support for various lossless audio formats, including DSD. Featuring a durable zinc alloy body, a clear display, and intuitive controls, it provides an exceptional listening experience. This manual will guide you through the setup, operation, maintenance, and troubleshooting of your device.

Package Contents
- Aigo MP3-105 PLUS Hifi Music Player x 1
- USB cable x 1
- Instructions Manual x 1
- Warranty card x 1
NOTE: SD card is not included.
Setup
1. Charging the Device
Before first use, fully charge your Aigo MP3-105 PLUS. Connect the included USB cable to the device's Micro USB port and plug the other end into a USB power adapter (not included) or a computer's USB port. A full charge takes approximately 2 hours and provides up to 25 hours of continuous playback.

2. Inserting a TF Card
The Aigo MP3-105 PLUS does not have internal memory for music storage. You must insert a TF (MicroSD) card to store your audio files. The device supports TF card expansion up to 128GB.
- Locate the TF card slot on the side of the player.
- Gently insert the TF card into the slot until it clicks into place.
- To remove, push the card in slightly until it springs out.
3. Transferring Music Files
You can transfer music files from your computer or an Android phone with OTG functionality.

From a Computer:
- Connect the player to your computer using the provided USB cable.
- The player will appear as a removable storage device.
- Drag and drop your music files into the TF card folder on the player.
From an Android Phone (with OTG function):
- Connect the player directly to your Android phone using an OTG cable (not included).
- Use your phone's file manager to transfer songs to the player's TF card.
Operating Instructions
1. Basic Controls
The player features a combination of physical buttons and a rotary encoder for navigation and control.

- Rotary Encoder: Used for quick track searching and menu navigation.
- Volume Buttons: Located on the side to adjust playback volume.
- Play/Pause Button: To start or pause music playback.
- Next/Previous Track Buttons: To skip tracks forward or backward.
- Menu Button: Accesses the main menu or context-sensitive options.
- Back Button: Returns to the previous screen or menu.
- Reset Button: Located on the side, use a pin to press for device reset if unresponsive.
- Screen Lock: The device includes a one-key screen lock function for convenient operation.
2. Screen and User Interface
The player is equipped with a 2.0-inch IPS high-definition TFT display (320x240 resolution, 4:3 aspect ratio) for a clear and intuitive visual experience. The UI is designed for easy navigation, displaying album art, lyrics, and track information.

3. Audio Playback
The Aigo MP3-105 PLUS supports multi-format lossless music playback, ensuring high-quality audio without the need for format conversion.

4. EQ Equalizer
Customize your listening experience with the 10-band professional EQ equalizer. You can adjust sound effects to your preference.

5. Output Interfaces
The device provides multiple output options:

- TF Card Socket: Supports up to 128GB for expanded storage.
- USB Interface: For data transfer and charging (Micro USB).
- Headphone Output: Independent design for high-quality audio.
- Line Out: For connecting to external amplifiers or audio systems.
Maintenance
- Cleaning: Use a soft, dry cloth to clean the device. Avoid using harsh chemicals or abrasive materials.
- Storage: Store the player in a cool, dry place away from direct sunlight and extreme temperatures.
- Battery Care: To prolong battery life, avoid fully discharging the battery frequently. Charge the device regularly, even if not in use for extended periods.
- Avoid Impact: The zinc alloy body is durable, but avoid dropping or subjecting the device to strong impacts.
Troubleshooting
- Device not turning on: Ensure the battery is charged. Connect to a power source and try again. If unresponsive, use a pin to press the reset button.
- No sound: Check headphone connection, adjust volume, ensure audio files are not corrupted.
- Cannot transfer files: Ensure the USB cable is properly connected. For OTG, confirm your phone supports OTG and the cable is functional.
- TF card not recognized: Ensure the TF card is inserted correctly. Try reinserting or using a different TF card to rule out card issues.
- Player freezes: Press the reset button on the side of the device using a small pin.
Specifications

| Feature | Description |
|---|---|
| Product Name | aigo MP3-105 PLUS |
| Storage | No internal memory, supports TF card up to 128GB |
| Display Size | 2.0 inch TFT display |
| Resolution | 320*240 LCD display |
| Battery | 3.7V 1500mAh |
| Signal to Noise Ratio | ≥85dB |
| Breakpoint Playback | Supported |
| Audio Format Support | MP3 (8-48kHz, 8-320kbps), WMA (8-48kHz, 5-384kbps, STD 8-96kHz lossless), WAV (8-192kHz), APE (8-96kHz high, 8-192kHz fast), FLAC (8-192kHz, L0-L10), AAC (8-48kHz, 8-320kbps LC), OGG (8-48kHz), DSD (5.6MHz sampling rate) |
| Play Time | About 25 hours (with screen off, volume 30, lossless music) |
| Operation Mode | Touch Tone (buttons) |
| USB Interface | Micro USB |
| Dimensions | Approx. 88mm (H) x 56mm (W) x 15.5mm (D) |
| Shell Material | Zinc Alloy (All metal anodizing, CNC cutting integrated molding) |
| DAC Chip | WM8965 |
| Op-Amp Chip | TPA6530 |
User Tips
- USB Port Type: The player uses a Micro USB port for charging and data transfer. Ensure you use the correct cable.
- Car Connectivity: To play music in a car, it is recommended to use the Line Out port with an AUX cable if your car stereo has an AUX input. Direct USB connection for audio playback in cars is generally not supported unless the car system specifically recognizes the player as a mass storage device for audio.
- Sound Quality: For the best audio experience, use high-quality headphones and lossless audio files (FLAC, WAV, DSD).
- Screen Off for Battery Life: Utilize the automatic screen-off feature or manually lock the screen to conserve battery during playback.
Warranty and Support
Your Aigo MP3-105 PLUS Hifi Music Player comes with a warranty as detailed on the included warranty card. Please refer to the card for specific terms and conditions.
For further assistance or detailed information, you may consult the comprehensive user manual available in PDF format. A digital copy of the user manual can be accessed via the following link: Aigo MP3-105 PLUS User Manual (PDF).
For technical support, please contact the retailer or manufacturer directly using the contact information provided on your warranty card or the product packaging.






