1. Introduction
Thank you for choosing the AideeMaster X20-New UI MP4 Music Player. This device is designed to provide a versatile multimedia experience with its 4-inch full touch screen, Hi-Fi sound, and extensive features including music, video, e-book, FM radio, and Bluetooth connectivity. This manual will guide you through the setup, operation, and maintenance of your new player.
2. Product Features
- Display: 4-inch color screen with LED backlight, bright widescreen, and sensitive full touch operation.
- Audio Quality: Hi-Fi sound support for an immersive listening experience.
- Multimedia Support: Multi-format music playback with lyrics synchronization, 1080P HD video playback (RM, AVI, RMVB, FLV, MP4, DAT, MKV, MPG, MOV, TS, FLV), photo viewer, and e-book reading.
- Connectivity: Bluetooth 5.2 for stable connection with BT headsets and speakers.
- Additional Functions: FM radio, voice recorder, alarm clock, world clock, pedometer, time, and calendar display.
- Storage: 16GB built-in memory, expandable up to 128GB via micro SD card (not included). Can also function as a USB flash drive.
- Battery Life: Up to 24 hours for music playback (with 3.5mm wired earphones, screen off), 7-8 hours for video or Bluetooth mode. Standby time up to 30 days.
- Design: Durable aluminum alloy body with dimensions of 103.5 x 64 x 11mm.
- User Interface: New UI for enhanced user experience.


3. Setup
3.1 Package Contents
Before you begin, please ensure all items are present in the package:
- 1 x AideeMaster X20 MP4 Music Player
- 1 x User Manual (this document)
- 1 x 3.5mm Earphones
- 1 x Type-C Data Cable

3.2 Charging the Device
The player comes with a built-in 1000mAh battery. For first-time use, it is recommended to fully charge the device.
- Connect the Type-C data cable to the charging port on the player.
- Connect the other end of the cable to a USB power adapter (5V=1A recommended) or a computer's USB port.
- The charging indicator will show the charging status. A full charge typically takes about 2 hours.
3.3 Power On/Off
- To Power On: Press and hold the Power button (usually on the side) for a few seconds until the screen lights up.
- To Power Off: Press and hold the Power button for a few seconds, then select 'Power Off' on the screen.
3.4 Language Selection
Upon first power-on or after a factory reset, you may need to select your preferred language.
- Navigate to 'Settings' on the home screen.
- Find 'Language' or a similar option.
- Select your desired language from the list (e.g., English, German, French, Spanish, etc.).
3.5 Inserting a Micro SD Card
To expand storage, insert a micro SD card (up to 128GB).
- Locate the micro SD card slot on the side of the device.
- Gently insert the micro SD card into the slot until it clicks into place.
- To remove, gently push the card in again until it pops out.

4. Operating Instructions
The AideeMaster X20 features a touch screen interface combined with physical buttons for navigation and control.
4.1 Basic Navigation
- Touch Screen: Tap to select, swipe to scroll, pinch to zoom (where applicable).
- Physical Buttons: Use the side buttons for volume control, power on/off, and potentially navigation depending on the application.
4.2 Music Playback
- From the home screen, tap the 'Music' icon.
- Browse your music by 'Playing', 'All songs', 'Music albums', or 'Playlists'.
- Tap a song to start playback.
- Use the on-screen controls or physical buttons to adjust volume, skip tracks, or pause/play.

4.3 Video Playback
- Tap the 'Video' icon on the home screen.
- Select a video file to play. The player supports 1080P HD video in formats like RM, AVI, RMVB, FLV, MP4, DAT, MKV, MPG, MOV, TS, FLV.
- The device supports speaker playback for videos.


4.4 Bluetooth Connection
Connect your player to Bluetooth headphones or speakers for wireless audio.
- Go to 'Settings' and select 'Bluetooth'.
- Turn Bluetooth 'On'.
- The player will scan for available devices. Select your device from the list to pair.

4.5 FM Radio
- Plug in the 3.5mm earphones (they act as the antenna).
- Tap the 'FM Radio' icon on the home screen.
- Use the on-screen controls to scan for stations or tune manually.
4.6 Other Functions
- Voice Recorder: Tap the 'Recorder' icon to start/stop audio recordings.
- E-book: Tap the 'EBook' icon to read text documents (TXT format).
- Photo Viewer: Tap the 'Photo' icon to browse images.
- Calendar/Clock: Access these features from the home screen or dedicated icons.
5. Maintenance
- Cleaning: Use a soft, dry cloth to clean the device. Do not use liquid cleaners or aerosols.
- 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 it regularly.
- Software Updates: Check the manufacturer's website periodically for any available firmware updates.
6. Troubleshooting
6.1 Device Does Not Turn On
- Ensure the battery is charged. Connect the player to a power source and try again after a few minutes.
- Press and hold the Power button for an extended period (10-15 seconds) to perform a hard reset.
6.2 Cannot Connect to Bluetooth Device
- Make sure Bluetooth is enabled on both the player and the target device.
- Ensure both devices are within the effective Bluetooth range (typically 10 meters).
- Check if the target device is in pairing mode.
- Try unpairing and re-pairing the devices.
6.3 No Sound
- Check the volume level on the player and any connected audio devices.
- Ensure headphones are properly plugged into the 3.5mm port.
- If using Bluetooth, ensure the device is correctly paired and connected.
6.4 Files Not Appearing
- Ensure files are in supported formats (e.g., MP3 for audio, MP4 for video, TXT for e-books).
- Verify that the micro SD card is properly inserted and not corrupted.
- Connect the player to a computer and check if files are visible in the device's storage.
7. Specifications
| Feature | Detail |
|---|---|
| Product Name | MP3 Player |
| Model Number | X20 |
| Brand Name | AideeMaster |
| Screen Size | 4 inches |
| Display Resolution | 800x480 |
| Operation Mode | Touch Screen, Touch Keys |
| Body Material | Metal (Aluminum alloy) |
| Dimensions (WxHxD) | 103.5 x 64 x 11mm |
| Bluetooth Version | 5.2 |
| Built-in Speaker | Yes |
| Headphone Port | 3.5mm |
| Internal Memory | 16GB |
| External Memory | Supports Micro SD card up to 128GB |
| Audio Format Support | MP3, WMA, ALAC, WAV, Ogg, FLAC, APE, AAC, ASF |
| Video Format Support | RM, AVI, RMVB, FLV, MP4, DAT, MKV, MPG, MOV, TS, FLV (1080P full format HD) |
| Battery Capacity | 1000mAh |
| Music Playback Time | Approx. 24 hours (with 3.5mm wired earphones, screen off) |
| Video/Bluetooth Playback Time | Approx. 7-8 hours |
| Standby Time | Up to 30 days |
| Charging Port | Type-C |
| Main Functions | Music, Video, Photo, Bluetooth, FM Radio, Record, E-book, Pedometer, World Clock, Alarm Clock, Calendar |
| Language Support | English, German, French, Spanish, Italian, Russian, Portuguese (Europe/Brazil), Hebrew, Japanese, Korean, Arabic, Danish, Czech, Hungarian, Dutch, Slovak, Finnish, Turkish, Greek, Thai, Simplified Chinese, Traditional Chinese |
| Certifications | CE, FCC, RoHS |
8. User Tips
- For optimal audio quality, consider using high-quality wired headphones, especially for Hi-Fi audio files.
- When transferring large files, connect the player directly to your computer using the provided Type-C cable for faster speeds.
- To save battery, reduce screen brightness or turn off the screen during music playback.
- Regularly organize your media files into folders for easier navigation on the device.
9. Warranty and Support
For detailed warranty information and customer support, please refer to the official product documentation or contact the seller directly. A comprehensive user manual in PDF format may also be available for download from the seller's website or via this link: User Manual (PDF).





