1. Introduction
Thank you for choosing the Arafuna Portable CD Player. This device is designed to provide a versatile audio experience, featuring CD playback, Bluetooth transmission, FM radio, and FM transmitter functions. Its compact design and rechargeable battery make it ideal for use at home, in the car, or on the go. Please read this manual thoroughly before using the product to ensure proper operation and to maximize its lifespan.

Figure 1.1: Arafuna Portable CD Player and Accessories
This image displays the Arafuna Portable CD Player in black, along with its charging cable, AUX cable, and wired earphones, showcasing the complete package contents.
2. Package Contents
Please check the package to ensure all items are present:
- 1 x Portable CD Player
- 1 x Earphone
- 1 x AUX Cord (3.5mm to 3.5mm)
- 1 x USB Charging Cable (Type-C to USB)
- 1 x User Manual

Figure 2.1: All items included in the product package
This image shows the Arafuna Portable CD Player, its retail box, wired earphones, AUX cable, and USB charging cable, laid out to display all included components.
3. Product Overview
Familiarize yourself with the various parts and controls of your Arafuna Portable CD Player:

Figure 3.1: Component Identification
This diagram provides a detailed view of the Arafuna Portable CD Player, highlighting its various buttons, ports, and features with corresponding numbers for easy identification.
- Display Screen: Shows track information, mode, battery status, etc.
- A-B/Records: A-B Repeat function and record (if applicable for TF card).
- FM Radio: Button to switch to FM radio mode.
- PROG/FM Signal Launch: Program playback order or launch FM transmitter.
- Bluetooth: Button to activate Bluetooth pairing.
- Play / Pause: Start or pause playback.
- Stop: Stop playback.
- Previous / Rewind: Go to previous track or rewind current track.
- Next / Fast Forward: Go to next track or fast forward current track.
- EQ: Equalizer settings button.
- MODE: Switch between playback modes (CD, Bluetooth, FM, TF).
- HOLD ON/OFF: Slide switch to lock/unlock buttons.
- TF CARD: Slot for TF (MicroSD) card.
- DC 5V CHARGE: Type-C charging port.
- Charging LED: Indicator light for charging status.
- Power ON/OFF: Slide switch to turn the device on or off.
- Headphone Jack 1: Primary 3.5mm headphone output.
- Headphone Jack 2: Secondary 3.5mm headphone output.
- Volume Knob: Rotary control for adjusting volume.
- OPEN: Slide switch to open the CD compartment.
4. Setup Guide
4.1 Initial Charging
Before first use, fully charge the CD player. Connect the provided USB charging cable to the DC 5V CHARGE port (14) on the player and the other end to a 5V/1A USB power adapter (not included), car USB port, or power bank. The Charging LED (15) will indicate charging status.

Figure 4.1: Charging the 2000mAh Rechargeable Battery
This image illustrates the various ways to charge the Arafuna Portable CD Player's 2000mAh battery, including wall charging, power bank, and car charging.
4.2 Power On/Off
Slide the Power ON/OFF switch (16) to the 'ON' position to turn on the player. Slide it to 'OFF' to power down the device.
4.3 Inserting a CD
Slide the OPEN switch (20) to open the CD compartment. Carefully place a CD with the label side facing up onto the spindle. Close the lid firmly until it clicks into place.
5. Operating Instructions
5.1 Basic CD Playback
After inserting a CD and powering on, the player will automatically begin reading the disc. Press the Play / Pause button (6) to start or pause playback. Use the Previous / Rewind (8) and Next / Fast Forward (9) buttons to navigate tracks. Adjust volume using the Volume Knob (19).
5.2 Bluetooth Transmission
This CD player features a Bluetooth transmitter, allowing it to connect to Bluetooth headphones or speakers. It cannot receive Bluetooth signals from devices like phones or laptops.
- Ensure your Bluetooth headphones/speaker are in pairing mode.
- Press the Bluetooth button (5) on the CD player. The display screen (1) will show available Bluetooth devices.
- Use the navigation buttons (8, 9) to select your desired device and press Play / Pause (6) to connect.
- Once connected, audio from the CD player will transmit to your Bluetooth device.

Figure 5.1: Bluetooth Transmitter Function
This image demonstrates the Arafuna Portable CD Player's ability to transmit audio wirelessly to external Bluetooth speakers and headphones, enabling a wireless listening experience.
Video 5.1: Portable CD Player Bluetooth Functionality
This video demonstrates the Bluetooth transmission capability of the Arafuna Portable CD Player, showing how it connects to external audio devices for wireless playback.
5.3 FM Radio Mode
The player can also function as an FM radio receiver.
- Press the FM Radio button (3) to switch to FM mode.
- The player supports frequencies from 76MHz to 108MHz.
- Use the navigation buttons (8, 9) to scan for stations.

Figure 5.2: FM Radio Function
This image shows the Arafuna Portable CD Player in FM radio mode, with a user enjoying radio programs through headphones, highlighting its ability to receive FM broadcasts.
5.4 FM Transmitter Mode (for Car Use)
To play CD audio through your car's stereo system, use the FM transmitter function.
- Press the PROG/FM Signal Launch button (4).
- Select one of the five available FM transmit frequencies: 79.3, 88.5, 93.6, 101.9, or 107.1 MHz.
- Tune your car's FM radio to the exact same frequency.
- The CD audio will now play through your car's speakers.
5.5 AUX Connection
For a wired connection to car stereos or other audio systems, use the provided 3.5mm AUX cable.
- Connect one end of the AUX cable to Headphone Jack 1 (17) on the CD player.
- Connect the other end to the AUX input of your car stereo or external speaker.
- Ensure the CD player's volume is adjusted appropriately.

Figure 5.3: AUX and FM Connections for Car Use
This image illustrates how the Arafuna Portable CD Player can be connected to a car's audio system using either an AUX cable or its built-in FM transmitter function.
5.6 TF Card Playback
The player supports MP3 music files stored on a TF (MicroSD) card (not included).
- Insert a TF card into the TF CARD slot (13).
- Press the MODE button (11) to switch to TF card mode.
- The player will automatically detect and play MP3 files.
5.7 EQ Modes
Press the EQ button (10) repeatedly to cycle through different equalizer presets:
- NOR (Normal)
- BBS (Bass Boost System)
- POP (Pop)
- ROC (Rock)
- JAZZ (Jazz)
- CLAS (Classical)
- COVS (Cover)
5.8 A-B Repeat and Speed Control
These functions are useful for language learning or specific audio segment repetition.
- A-B Repeat: During playback, press A-B/Records (2) once to set point A. Press again to set point B. The player will loop playback between A and B. Press a third time to cancel.
- Speed +/-: Use dedicated speed buttons (if present, or combined with other controls as per manual) to adjust playback speed.
5.9 Screen Sleep and Backlight
The display screen and buttons will dim after 10 seconds of inactivity to conserve battery. Press any button to reactivate the backlight.

Figure 5.4: Backlight Buttons and Digital Screen
This image highlights the digital screen and backlight buttons of the Arafuna Portable CD Player, illustrating how they illuminate for easy use in low-light conditions.
6. Maintenance and Care
- Keep the device dry. Avoid exposure to water or excessive humidity.
- Clean the player with a soft, dry cloth. Do not use abrasive cleaners or solvents.
- Handle CDs by the edges to avoid fingerprints and scratches. Clean CDs with a soft, lint-free cloth from the center outwards.
- Store the player in a cool, dry place when not in use.
- Avoid dropping the device or subjecting it to strong impacts.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Player does not power on. | Battery is depleted. Power switch is OFF. | Charge the battery. Slide Power ON/OFF switch to ON. |
| No sound from headphones/speakers. | Volume too low. Headphones/speakers not connected properly. Bluetooth not paired. | Increase volume. Reconnect headphones/speakers. Re-pair Bluetooth device. |
| CD skips or has poor sound. | CD is dirty or scratched. Player is subjected to strong vibration. | Clean or replace CD. Ensure player is on a stable surface or Anti-Skip Protection (ASP) is active. |
| Bluetooth pairing fails. | Device not in pairing mode. Too far from player. Player is not a Bluetooth receiver. | Ensure receiving device is in pairing mode. Move closer. Remember, this player transmits, it does not receive Bluetooth. |
| FM radio static. | Weak signal. Interference. | Adjust player position. Try a different location. |
8. Specifications
- Model Number: CD-521
- Product Dimensions: 5.5 x 5.5 x 1.1 inches
- Item Weight: 15.8 ounces
- Battery: 2000mAh Lithium Polymer (included)
- Connectivity Technology: Bluetooth (Transmitter), AUX
- Special Features: Bluetooth, FM Transmitter, Built-In FM Radio, Anti-Skip Protection, Dual Headphone Jacks
- Supported Disc Formats: CD, MP3, CD-R, CD-RW, HDCD
- TF Card Support: Yes (MP3 format, TF Card NOT included)
- FM Radio Frequency: 76MHz-108MHz
- FM Transmit Frequencies: 79.3, 88.5, 93.6, 101.9, 107.1 MHz
9. Warranty and Support
For warranty information or technical support, please refer to the contact details provided with your purchase or visit the official Arafuna website. Keep your purchase receipt as proof of purchase for any warranty claims.



