1. Introduction
Thank you for purchasing the Oilsky D26 MP3/MP4 Player. This manual provides detailed instructions on how to set up, operate, and maintain your device. Please read this manual thoroughly before using the player to ensure proper operation and to maximize your user experience.
2. Package Contents
Please check the box for the following items:
- 1 x Oilsky D26 MP3 Player
- 1 x Wired Earphones
- 1 x Type-C Charging Cable
- 1 x Protective Case
- 1 x User Manual

Image Description: A visual representation of the package contents, including the MP3 player, wired earphones, Type-C charging cable, protective case, and user manual.
3. Product Overview
Instruction of Buttons and Ports
Familiarize yourself with the layout of your D26 player:

Image Description: A detailed diagram showing the front, side, and bottom views of the D26 player with labels for each button and port:
- Front: 2.8 Inch touch screen, Home button (capacitive touch circle).
- Left Side: Reset hole, TF card slot.
- Right Side: Volume + button, Volume - button, Power ON/OFF button.
- Bottom: Headphone jack, USB jack (Type-C), Speaker.
4. Setup
4.1. Charging the Player
Before first use, fully charge your D26 player.
- Using the supplied USB cable, connect your D26 player to a computer's USB port or a wall charger (5V=1A recommended).
- While charging, observe the battery icon in the top right corner of the screen.

Image Description: A diagram illustrating how to charge the D26 player by connecting it to a computer via USB or to a wall adapter.
Battery Indicator:
- Charging: The power bar will move from one to four segments.
- Fully Charged: Four grid power segments will be displayed and stop moving.
Attention: Use only a 5V=1A charger for charging. Using an incompatible charger may lead to product failure.
4.2. Data Transfer
You can transfer media files to your D26 player from your computer.
- Connect your D26 player to your computer using the supplied USB cable.
- Your computer will recognize the player as a removable disk (flash drive).
- Drag and drop your media files (music, videos, e-books, photos) directly into the player's storage or a connected TF card.
- Alternatively, you can use music management software like Windows Media Player (iTunes is not supported).
Attention: If your computer cannot detect the MP3 Player, please update your USB driver to a 2.0 version, try another USB cable, or change the USB port on your PC. If issues persist, contact customer support.
4.3. Switching the Unit On/Off
- To Switch On: Press and hold the Power ON/OFF button for 3 seconds.
- To Switch Off: Press and hold the Power ON/OFF button. The screen will display "Power off" to confirm the unit is shutting down.
5. Operating Instructions
5.1. Basic Audio Functions
- Volume Up: Press the Volume + button.
- Volume Down: Press the Volume - button.
5.2. Music Playback
Tap on the "Music" icon on the main menu to access your music library.

Image Description: The D26 music interface showing options for song classification: All songs, Folder, Artists, Albums, Genres, and Playlists.
Music Control Icons:
| Icon | Operation | Function |
|---|---|---|
| ↩ | Tap | Exit |
| ◀ ▶ | Tap | Select option from menu |
| ▶ | Tap | Play Music |
| ⏸ | Tap | Pause Music |
| ⏮ | Tap | Play Previous Song |
| ⏭ | Tap | Play Next Song |
| ⏪ | Hold | Rewind |
| ⏩ | Hold | Fast forward |
| ❤️ | Tap | Add to default playlists |
| AB | Tap | Set A-B repeat mode |
| 🎶 | Tap | Set equalizer |
| ... | Tap | Enter song settings menu |
| ☰ | Tap | Back to music list |
Supported Music Formats: MP3, WMA, APE, WAV, FLAC, OGG.
5.3. Video Playback
Tap on the "Movie" icon on the main menu to play videos.
- Swipe left/right on the screen to switch between videos.
- Supported Video Formats: AMV & AVI ONLY. Videos need to be converted to 240*320 resolution using a conversion tool.
5.4. FM Radio
Tap on the "Radio" icon on the main menu to access the FM radio.

Image Description: The D26 player displaying the FM radio interface, tuned to 96.5MHz, with wired earphones connected acting as an antenna.
- Frequency Range: 87.5MHz - 108MHz.
- Antenna: Wired earphones must be inserted to function as an antenna for the FM radio.
- FM Recording: You can record FM radio broadcasts from the settings menu within the FM Radio application.
- FM Band Selection: In FM settings, you can choose "Tuner Region" for Common (87.0-108.0 MHz), Japan (76-90 MHz), or Euro (87.0-108.0 MHz) bands.
5.5. Bluetooth Connectivity
Tap on the "Bluetooth" icon on the main menu to enable and manage Bluetooth connections.

Image Description: The D26 player showing its Bluetooth interface, connected to wireless earbuds, with a Bluetooth speaker in the background. Text indicates "MP3 with Bluetooth 5.0" and "Can't be connected to mobile phones."
How to Pair:
- Turn on your Bluetooth speaker or headset and set it to pairing mode.
- On the D26, enable Bluetooth and tap "Search for device".
- Once your device appears in the list, select it to pair.
Attention:
- The D26 cannot pair with smartphones.
- When listening to radio via Bluetooth, wired headphones are still required as an antenna.
- If your Bluetooth earphones are connected to a mobile phone, disconnect them before pairing with the D26.
5.6. E-Book Reading
Tap on the "EBook" icon on the main menu to read e-books.
- Supported Format: ONLY TXT files are supported.
- While reading, tap the center of the screen to access settings for background color, font size, and brightness.
5.7. Voice Recorder
Tap on the "Record" icon on the main menu to use the voice recorder.
- Recording Formats: MP3 (32kbps, 64kbps, 128kbps, 192kbps) and WAV (512kbps, 768kbps, 1024kbps, 1536kbps).
- Line-in Recording: Connect an audio source via a 3.5mm AUX cable, then select "Recorder > Recorder setting > Record from > Line in".
5.8. Additional Functions
The D26 player includes other useful applications:
- Photo Viewer: View image files.
- Stopwatch: A basic stopwatch function.
- Alarm: Set alarms.
- Calendar: View the calendar.
- Theme: Customize the device's theme.
6. Maintenance
6.1. Resetting the Device
If the device becomes unresponsive or freezes, you can perform a reset:
- Poke the reset hole (located on the left side) with a thin needle, or
- Press and hold the Power ON/OFF button for 15 seconds.
6.2. Formatting the Device
Formatting the device will erase all data. Back up your files before proceeding.
- Go to "Settings > Format device".
- Confirm your choice to proceed with formatting.
6.3. Factory Settings
Restoring factory settings will revert all device settings to their default state, but will not erase user data.
- Go to "Settings > Factory settings".
- Confirm your choice to restore.
7. Troubleshooting
- Device not detected by computer: Update your computer's USB driver to version 2.0, try a different USB cable, or use another USB port on your computer.
- Bluetooth pairing issues: Ensure the D26 is not trying to connect to a smartphone (it cannot), and that the target Bluetooth device is in pairing mode and not connected to another device.
- No sound: Check volume levels, ensure earphones are properly plugged in, or try different earphones.
- Screen unresponsive: Perform a device reset as described in Section 6.1.
8. Specifications
| Feature | Specification |
|---|---|
| Screen Size | 2.8 Inch |
| Screen Resolution | 240 x 320 LCD |
| Weight | 3.03oz (86g) |
| Dimensions (WxHxD) | 7.6 x 5.6 x 1.5 cm (3.08 x 2.29 x 0.40 inches) |
| Body Material | Metal |
| Storage Type | Flash Memory (64GB built-in) |
| SD Card Expansion | Up to 128GB |
| Audio Format Support | MP3, WAV, OGG, FLAC, APE, WMA, AAC |
| Video Format Support | AMV, AVI (240x320 resolution) |
| Recording Format | MP3, WAV |
| Picture Format | JPG, BMP |
| Battery Specification | Lithium Battery, 3.7V/410mAh |
| Battery Life | > 20 hours |
| Charging Time | 3 hours |
| USB Port | USB 2.0 (Type-C) |
| Bluetooth | Yes (Bluetooth 5.3) |
| WIFI | No |
| FM Radio | Yes (87.5MHz-108MHz) |
| Recording Function | Yes |
| E-Book Reading | Yes (TXT format) |
| Built-in Speaker | Yes |
| Operation Mode | Touch Screen |
| Compatible OS | Windows XP (Home, Pro, SP1, SP2, SP3) 32bit / Windows 7-10 64bit |
| Certification | CE, FCC |
9. User Tips
- For optimal FM radio reception, always ensure wired earphones are plugged in as they act as the antenna.
- To extend battery life, consider adjusting the backlight timer to a shorter duration in the settings.
- When transferring files, organize them into folders (e.g., Music, Videos, Ebooks) on the device for easier navigation.
10. Warranty and Support
For any after-sales service or support, please feel free to contact Oilsky customer service.
Email: oilskyservice@hotmail.com
You can also download manuals and find further support at www.oilsky.com.cn.