Introduction
This manual provides detailed instructions for the Oilsky M308 HiFi MP3 Player. Please read this guide thoroughly before using your device to ensure proper operation and to maximize its features. Keep this manual for future reference.
What's in the Box

Image: The box contents of the Oilsky M308 MP3 Player, showing the device, a USB cable, a protective case, a user manual, and a 64GB TF card.
- 1x Oilsky M308 Hi-Fi Player
- 1x USB Cable
- 1x Protective Case
- 1x User Manual
- 1x 64GB TF Card
Product Overview

Image: A detailed view of the Oilsky M308 HiFi MP3 Player, highlighting its compact design, touch screen, and physical controls.
The Oilsky M308 is a portable HiFi MP3 player featuring a 2.8-inch touch screen and a mechanical volume knob. It runs on Android 9.0, offering versatile connectivity and high-quality audio playback.
Key Features:
- Operating System: Android 9.0
- Display: 2.8-inch Full Touch Screen
- Internal Storage: 16GB (expandable with 64GB TF card included, supports up to 1TB)
- Audio Technology: DSD 512 Digital Decoding, High-performance DAC (ESS9018Q2M) and AMP (MAX97720) chips, optimized sound separation for powerful bass, clear vocals, and full treble.
- Connectivity: Bluetooth, Wi-Fi (2.4G and 5G), USB, Auxiliary
- Battery: 1450mAh Lithium-polymer, up to 15 hours music playback
- Special Features: High-resolution audio, custom playlists, high-resolution screen
Setup
Initial Charging:
Before first use, fully charge the device. Connect the provided USB cable to the player and a power adapter (not included) or a computer USB port. A full charge typically takes approximately 3 hours.

Image: The Oilsky M308 MP3 Player connected for charging, illustrating its battery capacity and charging time.
Inserting the TF Card:
The device comes with a 64GB TF card pre-installed or included separately. Locate the TF card slot on the side of the player. Gently insert the TF card until it clicks into place. This expands the storage capacity for your music and files.

Image: A visual representation of inserting a 64GB TF card into the Oilsky M308 MP3 Player's expandable storage slot.
Powering On/Off:
Press and hold the power button (usually located on the side) for a few seconds to turn the device on or off. A short press will turn the screen on or off.
Operating Instructions
Navigation:
The Oilsky M308 features a 2.8-inch full touch screen for navigation. Swipe, tap, and pinch to interact with the interface, similar to a smartphone. The mechanical knob on the side controls the volume.

Image: A hand demonstrating touch screen interaction and the use of the mechanical volume knob on the Oilsky M308 MP3 Player.
Connecting to Wi-Fi:
- From the home screen, tap on the "Settings" icon.
- Select "Network & Internet".
- Toggle Wi-Fi to "On".
- Select your desired Wi-Fi network from the list and enter the password if prompted.

Image: The Oilsky M308 MP3 Player showing various music streaming applications, indicating its Wi-Fi streaming functionality.
Connecting to Bluetooth Devices:
- From the home screen, tap on the "Settings" icon.
- Select "Connected devices" or "Bluetooth".
- Toggle Bluetooth to "On".
- Ensure your Bluetooth headphones or speaker are in pairing mode.
- Select your device from the list of available devices to pair.

Image: The Oilsky M308 MP3 Player connected wirelessly to earbuds, demonstrating its Bluetooth connectivity for audio output.
Playing Music:
Use the pre-installed music player application or download your preferred streaming apps (e.g., Spotify, Deezer) via Wi-Fi. The player supports various audio formats including MP3, WAV, APE, FLAC, AAC, ALAC, DSF, DFF, ISO, and DTS.

Image: An illustration of the DSD & AMP technology within the Oilsky M308, alongside a list of supported audio file formats.
Creating Playlists:
The music player application allows you to organize your music into custom playlists. Follow the on-screen instructions within the app to add songs, categorize, and sort your music library.

Image: The Oilsky M308 MP3 Player's interface demonstrating playlist creation and music organization features.
Maintenance
Cleaning:
Use a soft, dry, lint-free cloth to clean the device screen and body. Avoid using abrasive cleaners or solvents, which may damage the surface.
Storage:
Store the player in a cool, dry place away from direct sunlight and extreme temperatures. Use the provided protective case to prevent scratches and minor impacts.
Battery Care:
To prolong battery life, avoid fully discharging the battery frequently. If storing the device for an extended period, charge it to about 50% before storage and recharge every few months.
Troubleshooting
- Device does not power on: Ensure the battery is charged. Connect the player to a power source and try again. If unresponsive, perform a hard reset by holding the power button for 10-15 seconds.
- Cannot connect to Wi-Fi: Check if Wi-Fi is enabled in settings. Verify the network password. Try restarting the player and your Wi-Fi router.
- Bluetooth connection issues: Ensure Bluetooth is enabled on both the player and the external device. Make sure the external device is in pairing mode. Try unpairing and re-pairing the devices.
- Music playback problems: Check the audio file format compatibility. Ensure the volume is not muted and headphones/speakers are properly connected.
- Device freezes or is slow: Close unnecessary background applications. Clear cache for frequently used apps. If issues persist, consider a factory reset (back up your data first).
Specifications
| Feature | Detail |
|---|---|
| Brand | Oilsky |
| Model Name | Oilsky MP3_PLAYER (M308) |
| Color | Black |
| Screen Size | 2.8 Inches |
| Operating System | Android 9.0 |
| Memory Storage Capacity | 80 GB (16GB internal + 64GB TF card included), expandable up to 1TB |
| Connectivity Technology | Auxiliary, Bluetooth, USB, Wi-Fi (2.4G & 5G) |
| Special Features | High-resolution audio, Bluetooth, WiFi, custom playlists, high-resolution screen, DSD 512 Digital Decoding, DAC ESS9018Q2M, AMP MAX97720, optimized sound separation (powerful bass, clear vocals, full treble) |
| Compatible Devices | Smartphone, personal computer, speaker, headphones, microSD card |
| Battery Type | Lithium-polymer (1450mAh) |
| Music Playback Time | Up to 15 hours |
| Charging Time | Approx. 3 hours |
| Supported Media Types | Micro SD |
| Supported Audio Formats | MP3, WAV, APE, FLAC, AAC, ALAC, DSF, DFF, ISO, DTS (44.1, 48, 88.2, 96, 176.4, 192kHz/16, 24bit) |
Warranty and Support
The Oilsky M308 HiFi MP3 Player comes with a manufacturer's warranty of 1 year. For warranty claims or technical support, please refer to the contact information provided in the product packaging or visit the official Oilsky website.
Please note that specific information regarding software updates and spare parts availability is not provided at this time.





