Introduction
Thank you for purchasing the Oilsky M308 Hi-Fi MP3 Player. This device is designed to provide a high-quality audio experience with advanced features such as Bluetooth, Wi-Fi, and expandable storage. This manual will guide you through the setup, operation, and maintenance of your new player. Please read it carefully before use and keep it for future reference.
Safety Warnings
- Do not leave the device in environments with extreme temperatures (below -10°C or above 50°C) for extended periods. Extreme temperatures can cause deformation and shorten the device's lifespan.
- Do not use the equipment during thunderstorms.
- Do not immerse the device in water for a long time.
- Do not expose the equipment to direct sunlight for prolonged periods.
Product Overview: Controls & Functions
Device Layout
Refer to the diagram below for the location of controls and ports:
- Previous
- Next
- Reset
- Power ON/OFF
- Card Slot
- Recording hole
- USB-C Port
- Headphone jack
- Volume control
- Recent apps
- Home
- Return
Setup
Charging the Device
Important Note: Use a standard charger (5V-1A or 5V-2A) or charge via a computer's USB port. Do not use fast-charging devices with a power output exceeding 20W, as this MP3 player does not support fast-charging. High-speed fast chargers will damage the device.
If the player cannot be powered on after use (when the battery is fully drained) or after long-term non-use: Connect the charger to the device, and do not power it on immediately. Wait until the screen displays the charging indicator and the battery level reaches 5% or above before turning it on. Otherwise, the player may fail to start due to insufficient power.
Power ON/OFF
Hold the Power ON/OFF button (4) to choose to turn on/off or restart the player.
Volume Adjustment
Turn the volume control knob (9) clockwise to increase volume and counter-clockwise to decrease volume.
Operating Instructions
Wi-Fi Connectivity
The player supports 2.4G and 5G dual-band Wi-Fi connections, allowing you to access music resources and perform other Android functions.
Music Playback & Playlists
If you experience stuttering while playing DSD512 files, you may switch to AIMP for smoother playback.
Updating & Adding Playlists:
- FIIO: Go to Settings > Scan for music > Scan all or Scan selected folder(s).
- AIMP: On "Default Page" > Add Files... > Add files and confirm.
Bluetooth Connection
The player can be paired via Bluetooth with earbuds or external speakers.
- Tap on "Bluetooth" from the Main Menu.
- Tap on "Pair new device" to search for available devices.
- Activate Bluetooth on your external device and ensure it is visible and ready to pair.
- A list of found devices will be displayed. Tap on the desired device and wait for connection. Once paired, the device will show 'Connected'.
Note:
- If connection fails, repeat steps 2-4.
- To disconnect, remove the device from the "Devices List".
- To switch off Bluetooth, go to "Bluetooth" and select "Bluetooth OFF".
Apps & APK Installation
The player allows installation of third-party apps:
- Method 1 (Online): Connect to a valid Wi-Fi network, then go to Google Play to download and install apps directly.
- Method 2 (Local): Copy the APK file to the device. Go to the File Manager menu to find and install the file.
Gain Adjustment
Swipe down on the screen to access two gain levels: high and low. Low gain helps achieve longer battery life, while high gain provides a smoother music experience, especially with high-impedance headphones.
General Settings
Firmware Upgrade
- Contact our After Sales Team for upgraded firmware.
- Transfer the original unzipped files to your SD card and insert it into the device.
- Ensure the device has adequate power (>30%) before upgrading to avoid failure.
- Go to [Setting] > [System] > [System updates] > Confirm to start the update.
Wallpaper
Tap and hold your finger on any open space on your home screen. A list of options will appear:
- Wallpapers: Choose from default images.
- Gallery: Choose a wallpaper from your personal gallery.
Factory Data Reset
If you encounter problems with the device, performing a factory data reset may help. Note: This operation will DELETE all content on the player and the SD card. Please back up all your files before proceeding.
Specifications
| Feature | Specification |
|---|---|
| Product Name | Oilsky M308 HiFi MP3 Player |
| Android System | Android 9.0 |
| Processor | 8-core 1.5G |
| Memory Capacity | 2GB RAM + 16GB ROM (Built-in) |
| File System | FAT32, exFAT, NTFS |
| Screen Size | 2.8 inch |
| Resolution Ratio | 480*640 |
| Video Format Support | AVI, MKV, RMVB, MP4, MPG, MOV |
| Picture Format Support | JPEG, BMP, GIF, PNG |
| Audio Format Support | MP3, WAV, APE, FLAC, AAC, ALAC, DSF, DFF, ISO, DTS |
| Supported Audio Specifications | 44.1, 48, 88.2, 96, 176.4, 192kHz/16, 24bit |
| Bluetooth Emission | LDAC, SBC, AAC |
| DSD Support | 512 |
| Card Slot | Supports up to 1TB (64GB TF Card included) |
| Bluetooth Version | V4.1 |
| Wi-Fi | Dual-band (2.4GHz & 5 GHz) |
| USB Slot | TYPE-C |
| Earphone Type | φ3.5 * 1 standard (max 125mW/32Ω) |
| Battery Capacity | 1450mAh |
| Battery Life | Up to 15 hours (continuous high-resolution audio playback) |
| DAC+AMP | ESS9018Q2M + MAX97720 |
| Output Power | 0.95V@32R(28mw@32R) 1.9V@600R(6mw@600R) |
| Frequency Response | 20-40KHz(±0.5dB) THD+n -92dB@0.95V 32R -96dB@1.9V 600R |
| Signal-to-Noise Ratio | 109dBA@600R 103dBA@32R |
| Dynamic Range | 109dBA@600R 103dBA@32R |
| Output Impedance | <0.5R |
| OTG Support | Not supported |
| Dimensions (WxHxD) | 8*5.5*1.5cm (3.14×2.16×0.55 inches) |
| Weight | 134g (4.72oz) |
| Body Material | Metal |
| Functions | E-Book Reading, Bluetooth, Built-in Speaker, Photo Viewer, World Clock |
| Certifications | CE, FCC, WEEE |
Troubleshooting
1. Device Not Recognized or Keeps Disconnecting
- Check for loose connections.
- Check if the USB port or USB cable is damaged.
- Try connecting the USB cable to other devices.
- Attempt connection through a multi-port hub.
2. SD Card Not Working Properly
- Re-insert the SD card into the device.
- Check the SD card for physical damage.
- Ensure the SD card is formatted as FAT32 or EXFAT (FAT32 is perfectly supported).
- Restart the MP3 player or perform a factory reset.
- Make sure the SD card's metal contacts are clean.
- Ensure the SD card has sufficient free storage.
- If issues persist, email us with a video or photo demonstrating the problem.
User Tips
- Charging: Always use a 5V/1A or 5V/2A charger. Avoid fast chargers over 20W, as the device does not support fast charging and can be damaged.
- Battery Maintenance: If not using the player for an extended period, charge and discharge the battery at least once a month to prevent damage from over-discharge.
- SD Card Compatibility: For optimal performance, ensure your SD card is formatted as FAT32 or EXFAT.
- DSD512 Playback: If you experience stuttering when playing DSD512 files, try switching to the AIMP player application for smoother performance.
- App Installation: The Android 9.0 system allows you to download and install various apps, including streaming services and video players like YouTube, directly from Google Play when connected to Wi-Fi.
- Password Security: If you set a screen lock password, make sure to remember it. A factory reset will erase all data on the device.
- FM Radio: This device does not support FM radio functionality.
- OTG Functionality: The device does not support USB On-The-Go (OTG) for external audio interfaces or other peripherals.
Warranty & Support
For any technical assistance, firmware upgrades, or troubleshooting not covered in this manual, please contact our support team:
Email: oilskyservice@hotmail.com
A comprehensive user manual in PDF format is available for download. You can access it here: Oilsky M308 User Manual (PDF)
Compliance & Disposal
This product complies with CE, FCC, and WEEE directives. The WEEE symbol indicates that this product should not be disposed of with household waste. It should be handed over to an applicable collection point for the recycling of electrical and electronic equipment. By ensuring this product is disposed of correctly, you will help prevent potential negative consequences for the environment and human health, which could otherwise be caused by inappropriate waste handling of this product.
