1. Introducció
The AGPTEK U3 is a versatile portable MP3 player designed for music playback, FM radio reception, and voice recording. It features an integrated USB stick for direct data transfer and supports expandable memory up to 128GB. This manual provides detailed instructions for setting up, operating, and maintaining your device.

Image 1.1: The AGPTEK U3 MP3 Player functioning as a USB stick for data transfer, also indicating its radio, voice recorder, and music playback capabilities.
2. Contingut del paquet
Si us plau, comproveu el paquet per veure si hi ha els elements següents:
- Reproductor MP3 AGPTEK U3
- Cable USB
- Manual d'instruccions
3. Disseny del dispositiu
Familiarize yourself with the buttons and ports of your AGPTEK U3 MP3 Player.

Imatge 3.1: Frontal view of the AGPTEK U3 MP3 Player, displaying the OLCD screen and navigation buttons.

Image 3.2: The AGPTEK U3 MP3 Player with the USB cap removed, showing the direct USB-A plug for computer connection.
4. Configuració
4.1 Instal·lació de la bateria
The AGPTEK U3 MP3 Player uses one AAA battery. To install or replace the battery:
- Remove the back cover of the player.
- Insert one AAA battery, ensuring correct polarity (+ and - terminals).
- Col·loqueu la coberta posterior de manera segura.

Image 4.1: Illustration of AAA battery installation into the player's compartment.
4.2 Connexió a un ordinador
The player features a direct USB 2.0 connection for easy data transfer.
- Remove the protective cap from the USB connector.
- Plug the player directly into an available USB port on your computer.
- Once connected, the computer should recognize the device as a removable disk.
- Nota important: After connecting the device to your computer, select the appropriate national language on the player's interface to ensure proper recognition by the computer.
You can then drag and drop music files (MP3, WMA) directly to the player's internal storage.

Image 4.2: The MP3 player connected to a laptop via its integrated USB port for data transfer.
4.3 Expansió de memòria
The player has 8GB of internal memory. You can expand the storage capacity by inserting a microSD card (not included) into the designated slot. The device supports microSD cards up to 128GB.

Image 4.3: The player with a microSD card, illustrating the expandable memory feature.
5. Instruccions de funcionament
5.1 Encès/Apagat
- Per engegar, premeu i manteniu premut el botó d'engegada fins que la pantalla s'il·lumini.
- To power off, press and hold the power button until the screen turns off.
5.2 Reproducció de música
The player supports MP3 and WMA audio formats. Navigate through your music library using the control buttons.
- Reproduir/pausa: Premeu el botó Reproduir/Pausa.
- Seguiment anterior / següent: Use the forward/backward buttons.
- Ajust de volum: Use the volume buttons.
- Modes de joc: Select from Shuffle, All Repeat, Repeat 1, and other modes.
- Equalitzador (EQ): Choose from Natural, Rock, Pop, Classic, Soft, Jazz, and DBB sound effects.

Image 5.1: The player's screen showing options for music playback modes and equalizer settings.
5.3 Ràdio FM
Per utilitzar la funció de ràdio FM:
- Connect headphones, as they act as the antenna.
- Select the FM Radio option from the main menu.
- Feu servir els botons de navegació per cercar emissores o sintonitzar-les manualment.
- The player supports frequency ranges of 76-90MHz (Japan Region) and 87.5-108MHz (Other Regions).

Image 5.2: The player's screen showing the FM radio interface and frequency display.
5.4 Gravadora de veu
The AGPTEK U3 can also function as a voice recorder.
- Select the Voice Recorder option from the main menu.
- Premeu el botó Reprodueix/Pausa per iniciar la gravació.
- Press the Play/Pause button again to stop and save the recording.

Image 5.3: The player's screen indicating the voice recording function.
5.5 Connecting to External Audio Devices
You can connect the player to external audio devices, such as car stereos or speakers, using a 3.5mm AUX cable (not included).
- Plug one end of the 3.5mm AUX cable into the player's headphone jack.
- Plug the other end into the AUX input of your external audio device.
- Select the AUX input on your external device to play music from the MP3 player.

Image 5.4: The player connected to an external audio system using an AUX cable.
6. Manteniment
To ensure the longevity and optimal performance of your AGPTEK U3 MP3 Player, follow these maintenance guidelines:
- Neteja: Wipe the device with a soft, dry cloth. Avoid using liquid cleaners or solvents, as they may damage the plastic body and OLCD screen. The plastic body is designed to be resistant to stains and fingerprints.
- Substitució de la bateria: As the player uses a replaceable AAA battery, ensure you replace it with a fresh battery when power is low to maintain continuous operation.
- Emmagatzematge: Guardeu el reproductor en un lloc fresc i sec, allunyat de la llum solar directa i de temperatures extremes.
7. Solució De Problemes
If you encounter issues with your AGPTEK U3 MP3 Player, refer to the following common solutions:
- Dispositiu no reconegut per l'ordinador:
- Ensure the player is securely plugged into the USB port.
- Proveu un port USB diferent a l'ordinador.
- Verify that you have selected the correct national language on the player's interface after connecting it to the computer.
- Reinicieu l'ordinador i torneu-ho a provar.
- Player does not turn on:
- Check if the AAA battery is inserted correctly with the right polarity.
- Substituïu la bateria AAA per una de nova.
- No sound during music playback:
- Assegureu-vos que els auriculars estiguin connectats correctament.
- Comproveu el nivell de volum del reproductor.
- Comproveu que l'àudio files are in a supported format (MP3, WMA).
8. Especificacions
| Característica | Especificació |
|---|---|
| Marca | AGPTEK |
| Nom del model | U3 |
| Número de model | U3B-EU4 |
| Dimensions | 1.3 x 2.6 x 8.1 cm |
| Pes | 50 grams |
| Memòria interna | 8 GB |
| Memòria ampliable | Fins a 128 GB (targeta Micro SD no inclosa) |
| Tipus de bateria | 1 pila AAA (no inclosa) |
| Tecnologia de pantalla | OLCD |
| Mida de la pantalla | 1.3 polzades |
| Connectivitat | USB 2.0 |
| Formats d'àudio compatibles | MP3, WMA |
| Dispositius compatibles | Laptop, Personal Computer, Headphones |
| Característiques addicionals | Portable, FM Radio, Voice Recorder |
9. Garantia i Suport
AGPTEK is committed to providing excellent customer service and product support.
- Garantia: Your AGPTEK U3 MP3 Player comes with a 2-year warranty from the date of purchase.
- Assistència tècnica: Lifetime technical support is available for all AGPTEK products.
- Servei en línia: We offer 24/7 online support to address any queries or issues you may have.
For further assistance, please visit the official AGPTEK webo poseu-vos en contacte amb el nostre equip d'atenció al client.

Image 9.1: AGPTEK customer service and support details.





