1. Introducció
Gràcies per la compraasing the Syitren R400 Retro CD Player. This portable device combines classic CD playback with modern Bluetooth wireless connectivity, offering a high-quality audio experience. Please note that the R400 CD player does not have a built-in speaker and requires external headphones or an audio device for sound output. It supports both wired and Bluetooth connections.
Important Note: The R400 CD player does not include a built-in speaker. External headphones or a speaker are required for audio output.
Video: Syitren R400 Retro CD Player product showcase.
2. Informació de seguretat
- Llegiu atentament totes les instruccions abans d'utilitzar.
- Manteniu el dispositiu allunyat de l'aigua, la humitat i les temperatures extremes.
- No intenteu desmuntar ni reparar el dispositiu vosaltres mateixos. Poseu-vos en contacte amb personal de servei qualificat.
- Use only the specified charging cable and power adapter (DC 5V/2A).
- Eviteu deixar caure o sotmetre el dispositiu a forts impactes.
- Mantenir fora de l'abast dels nens.
3. Contingut del paquet
Si us plau, comproveu el paquet per veure si hi ha els elements següents:

Image: Packing List
- Caixa d'embalatge
- CD Player (Main unit)
- Demo Disc
- Specification (Instruction Manual)
- Paper d'embolicar
- Cable de càrrega
Note: Optional accessories such as the N100 Bluetooth speaker or protective case are sold separately or as part of specific bundles.
4. Producte acabatview
Familiarize yourself with the buttons and interfaces of your Syitren R400 CD Player.

Image: Key Function Diagram
Funcions clau:
- Previous Track / Fast Rewind: Short press for previous track, long press for fast rewind.
- Next Track / Fast Forward: Short press for next track, long press for fast forward.
- Atura la reproducció: Stops the current CD playback.
- Pujar el volum: Augmenta el volum d'àudio.
- Baixar el volum: Disminueix el volum d'àudio.
- Reproduir/Pausa: Toggles playback between play and pause.
- Playback Mode Switch: Toggle switch for selecting playback modes (Loop All, Single Loop, Random Play).
- Llum indicador d'estat: Displays the current operational status of the device.
- Interruptor d'alimentació: Encén o apaga el dispositiu.
- AUX Output Interface: 3.5mm jack for wired headphone or speaker connection.
- Output Mode Switch / Bluetooth Reset: Short press to switch output mode (e.g., between wired and Bluetooth), long press to reset Bluetooth connection.
- Llum indicador d'alimentació: Indica l'estat d'alimentació.
- Interfície de càrrega: USB-C port for charging the device (DC 5V/2A).
5. Configuració
5.1 Installing the Stand / Protective Case (Optional)
If your package includes a protective case or stand, you can install it as follows:

Image: Stand Installation Guide
- With Protective Case: Attach the stand to the designated slots on the protective case. Ensure it clicks securely into place.
- Without Protective Case: Directly attach the stand to the corresponding slots on the R400 CD player.
5.2 Loading a CD
- Gently open the CD compartment cover.
- Place the CD onto the spindle with the label side facing up.
- Gently close the CD compartment cover until it clicks shut.

GIF: CD Loading Process
6. Instruccions de funcionament
6.1 Encès/Apagat
Feu lliscar el Interruptor d'alimentació (09) to turn the device on or off. The Power Indicator Light (12) will illuminate when the device is on.
6.2 Reproducció bàsica
- Ensure a CD is loaded and an audio output device (headphones/speaker) is connected (wired or Bluetooth).
- Feu lliscar el Interruptor d'alimentació (09) per encendre el reproductor.
- Premeu el botó Botó Reproduir/Pausa (06) per iniciar la reproducció.
- Utilitza el Previous Track (01) i Next Track (02) botons per navegar per pistes.
- Ajusteu el volum amb el botó Puja el volum (04) i Baixada de volum (05) botons.
- Premeu el botó Stop Playback button (03) to stop the CD.
6.3 Modes de reproducció
Utilitza el Playback Mode Switch (07) to cycle through different playback options:
- Loop All: Plays all tracks on the CD repeatedly.
- Bucle únic: Repeteix la pista actual.
- Reproducció aleatòria: Plays tracks in a random order.

GIF: Playback Mode Switch
7. Connectivitat
7.1 Connexió per cable
The R400 features a classic 3.5mm AUX output interface. Connect your wired headphones or external speakers to the AUX Output Interface (10). The device will automatically output audio through this port when connected.
7.2 Connexió Bluetooth
The R400 supports Bluetooth 5.3 for wireless audio streaming to compatible devices.
- Ensure the R400 is powered on.
- Premeu breument Output Mode Switch (11) to select Bluetooth mode. The Status Indicator Light (08) may change to indicate Bluetooth pairing mode.
- On your Bluetooth audio device (headphones, speaker), enable Bluetooth and search for available devices.
- Select "Syitren R400" from the list of found devices to pair.
- Once paired, audio from the CD player will be streamed wirelessly to your connected device.
- To reset the Bluetooth connection, long press the Output Mode Switch (11).

Image: Wired and Wireless Connection Examples
8. Càrrega
The Syitren R400 is powered by a built-in 18650 battery with a capacity of 2000mAh (rated 1800mAh).
- Connecteu el cable de càrrega proporcionat a Charging Interface (13) on the R400.
- Connect the other end of the charging cable to a DC 5V/2A power adapter (not included).
- El Power Indicator Light (12) mostrarà l'estat de càrrega.
- A full charge takes approximately 4 hours and provides approximately 4 hours of usable playback time.

Image: Charging Port
The sinking charging compartment and wire groove design helps prevent the charging head from bending or damage during use.
9. Manteniment
- Neteja: Use a soft, dry cloth to clean the exterior of the CD player. Do not use abrasive cleaners or solvents.
- Cura de CD: Handle CDs by their edges to avoid fingerprints and scratches. Store CDs in their cases when not in use.
- Neteja de lents: If playback issues occur due to a dirty lens, use a specialized CD lens cleaning kit. Do not touch the lens directly.
- Emmagatzematge: Guardeu el dispositiu en un lloc fresc i sec, allunyat de la llum solar directa i de temperatures extremes.
- Disseny antilliscant: The bottom of the R400 features a raised anti-slip design to prevent scratches on the body when placed on surfaces.
10. Solució De Problemes
| Problema | Causa possible | Solució |
|---|---|---|
| Sense poder | Battery drained; Power switch off | Charge the device; Ensure power switch (09) is ON. |
| Sense sortida de so | No headphones/speaker connected; Volume too low; Incorrect output mode; Faulty audio device | Connect headphones/speaker; Increase volume (04); Short press Output Mode Switch (11); Test with another audio device. |
| El CD no es reprodueix/salta | CD dirty/scratched; CD not inserted correctly; Lens dirty | Clean CD; Reinsert CD correctly; Use a CD lens cleaner. |
| Bluetooth no connectat | R400 not in pairing mode; Device too far; Interference; Previously paired device issue | Ensure R400 is in Bluetooth mode (11); Move devices closer; Long press Output Mode Switch (11) to reset Bluetooth and re-pair. |
| Els botons no responen | Error temporal de programari | Turn the device off and then on again. |
11. Especificacions
| Característica | Detall |
|---|---|
| Nom del producte | Syitren Retro CD Player R400 |
| Versió Bluetooth | 5.3 |
| Formats de disc compatibles | CD/CD-R/CD-RW |
| Formats d'àudio compatibles | CD/MP3/WAV/WMA |
| Decoding Chip Model | SC6137D |
| Relació senyal/soroll | 70DB |
| Audio Output Thrust | 6.0MW@32 Ω |
| Shockproof Time | 16S |
| Model de bateria | 18650 |
| Capacitat de la bateria | 2000MAH (Rated 1800MAH) |
| Entrada nominal | DC 5V/2A |
| Durada de càrrega completa | ≥ 4H |
| Full Charge Usable Time | ≥ 4H |
| Pes net | 330G |
| Mida del producte (AxAxP) | 161 * 161 * 37 mm |
| Altaveus incorporats | NO |
| Connexió de suport | Wired/Wireless Bluetooth audio devices |

Image: Parameter Details
12. Consells d'usuari
- External Audio is Key: Remember, this player requires external headphones or a speaker. Make sure you have a compatible audio output device ready for use.
- Check Your Bundle: The R400 comes in various options (player only, with N100 speaker, with protective case). Confirm your specific bundle to ensure you have all expected accessories.
- Physical Buttons for Control: The R400 features tactile physical buttons for a more engaging user experience. Familiarize yourself with their functions for smooth operation.
- Protegiu el vostre dispositiu: Utilize the anti-slip design on the bottom to prevent scratches. If you have the protective case, it adds an extra layer of defense.
13. Garantia i Suport
For warranty information, technical support, or service inquiries, please contact the seller or manufacturer directly. Keep your proof of purchase for any warranty claims.





