1. Okwu mmalite
Daalụ maka ịzụrụasing 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. Ozi nchekwa
- Gụọ ntuziaka niile nke ọma tupu ojiji.
- Debe ngwaọrụ ahụ pụọ na mmiri, mmiri, na oke okpomọkụ.
- Anwala ịkwasa ma ọ bụ rụkwaa ngwaọrụ n'onwe gị. Rụtụ aka na ndị ọrụ ruru eru.
- Use only the specified charging cable and power adapter (DC 5V/2A).
- Zere idobe ma ọ bụ idobe ngwaọrụ ahụ na mmetụta siri ike.
- Debe ebe ụmụaka na-apụghị iru.
3. Ihe ngwugwu
Biko lelee ngwungwu maka ihe ndị a:

Image: Packing List
- Igbe nkwakọ ngwaahịa
- CD Player (Main unit)
- Demo Disc
- Specification (Instruction Manual)
- Mpempe akwụkwọ
- Ịchaji eriri
Note: Optional accessories such as the N100 Bluetooth speaker or protective case are sold separately or as part of specific bundles.
4. Ngwaahịa gafereview
Familiarize yourself with the buttons and interfaces of your Syitren R400 CD Player.

Image: Key Function Diagram
Ọrụ ndị dị mkpa:
- 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.
- Kwụsị ịkpọghachi: Stops the current CD playback.
- Olu elu: Na-abawanye olu ọdịyo.
- Olu ala: Na-ebelata olu ọdịyo.
- Gwuo / kwụsịtụ: Na-agbanwe egwuregwu n'etiti egwuregwu na nkwụsịtụ.
- Playback Mode Switch: Toggle switch for selecting playback modes (Loop All, Single Loop, Random Play).
- Ìhè ihe ngosi ọnọdụ: Displays the current operational status of the device.
- Ike mgba ọkụ: Gbanyụọ ma ọ bụ gbanyụọ ngwaọrụ.
- 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.
- Ìhè egosi ike: Na-egosi ọkwa ike.
- Interface chaja: USB-C port for charging the device (DC 5V/2A).
5. Nhazi
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. Ntuziaka ọrụ
6.1 Gbanyụọ ma ọ bụ gbanyụọ
Malite Mgbanwe Ike (09) to turn the device on or off. The Power Indicator Light (12) will illuminate when the device is on.
6.2 Nkpọghachi azụ
- Ensure a CD is loaded and an audio output device (headphones/speaker) is connected (wired or Bluetooth).
- Malite Mgbanwe Ike (09) ịgbanye onye ọkpụkpọ.
- Pịa Play/Pause button (06) ibido playback.
- Jiri ihe Previous Track (01) na Next Track (02) bọtịnụ ka ịnyagharịa egwu.
- Gbanwee olu site na iji Oke elu (04) na Mpịakọta ọnụ (05) bọtịnụ.
- Pịa Stop Playback button (03) to stop the CD.
6.3 Playback Modes
Jiri ihe Playback Mode Switch (07) to cycle through different playback options:
- Loop All: Plays all tracks on the CD repeatedly.
- Otu Loop: Na-emegharị egwu dị ugbu a.
- Egwuregwu enweghị usoro: Na-akpọ egwu n'usoro enweghị usoro.

GIF: Playback Mode Switch
7. Njikọta
7.1 Njikọ wired
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 Njikọ Bluetooth
The R400 supports Bluetooth 5.3 for wireless audio streaming to compatible devices.
- Ensure the R400 is powered on.
- Mkpirisi pịa 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. Ịchaji
The Syitren R400 is powered by a built-in 18650 battery with a capacity of 2000mAh (rated 1800mAh).
- Connect the provided charging cable to the Charging Interface (13) on the R400.
- Connect the other end of the charging cable to a DC 5V/2A power adapter (not included).
- Nke Power Indicator Light (12) ga-egosi ọkwa nchaji.
- 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. Nlekọta
- Nhicha: Use a soft, dry cloth to clean the exterior of the CD player. Do not use abrasive cleaners or solvents.
- Nlekọta CD: Handle CDs by their edges to avoid fingerprints and scratches. Store CDs in their cases when not in use.
- Nchacha oghere: If playback issues occur due to a dirty lens, use a specialized CD lens cleaning kit. Do not touch the lens directly.
- Nchekwa: Chekwaa ngwaọrụ ahụ n'ebe dị jụụ, kpọrọ nkụ na-adịghị na ìhè anyanwụ kpọmkwem na oke okpomọkụ.
- Nhazi ihe mgbochi: The bottom of the R400 features a raised anti-slip design to prevent scratches on the body when placed on surfaces.
10. Nchọpụta nsogbu
| Nsogbu | Ihe nwere ike ime | Ngwọta |
|---|---|---|
| Enweghị ike | Battery drained; Power switch off | Charge the device; Ensure power switch (09) is ON. |
| Enweghị mmepụta ụda | 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. |
| CD anaghị akpọ egwu/awụlikwa elu | CD dirty/scratched; CD not inserted correctly; Lens dirty | Clean CD; Reinsert CD correctly; Use a CD lens cleaner. |
| Bluetooth anaghị ejikọ | 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. |
| Bọtịnụ anaghị anabata | Nsogbu ngwanrọ nwa oge | Turn the device off and then on again. |
11. Nkọwapụta
| Njirimara | Nkọwa |
|---|---|
| Aha ngwaahịa | Syitren Retro CD Player R400 |
| Ụdị Bluetooth | 5.3 |
| Ụdị diski akwadoro | CD/CD-R/CD-RW |
| Ụdị ọdịyo akwadoro | CD/MP3/WAV/WMA |
| Decoding Chip Model | SC6137D |
| Mgbama nye oke mkpọtụ | 70DB |
| Audio Output Thrust | 6.0MW@32 Ω |
| Shockproof Time | 16S |
| Ụdị batrị | 18650 |
| Ike batrị | 2000MAH (Rated 1800MAH) |
| Ntinye akwadoro | DC 5V/2A |
| Ogologo ụgwọ zuru ezu | ≥4H |
| Full Charge Usable Time | ≥4H |
| Nha ịbụ | 330G |
| Nha ngwaahịa (WxHxD) | 161 * 161 * 37mm |
| Ndị na-ekwu okwu arụrụ arụ | Mba |
| Nkwado Njikọ | Wired/Wireless Bluetooth audio devices |

Image: Parameter Details
12. Ndụmọdụ onye ọrụ
- 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.
- Protect Your Device: 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. Akwụkwọ ikike na nkwado
Maka ozi gbasara akwụkwọ ikike, nkwado teknụzụ, ma ọ bụ ajụjụ gbasara ọrụ, biko kpọtụrụ onye na-ere ahịa ma ọ bụ onye nrụpụta ozugbo. Debe ihe akaebe nke ịzụrụ ihe gị maka akwụkwọ ikike ọ bụla.





