EONKO L-528 Multi Function Stereo Radio Speaker User Manual

1. Introduction

The EONKO L-528 is a versatile multi-function stereo radio speaker designed for portable audio entertainment. It combines traditional AM/FM radio with modern features such as Bluetooth connectivity, MP3 playback from TF cards and USB drives, hands-free calling, AUX input, recording capabilities, a flashlight, and a clock with an alarm function. Its compact design and rechargeable battery make it an ideal companion for various activities.

2. Key Features

• Multi-Source Audio Playback: Supports MP3 music from TF cards and USB flash drives (up to 32GB).
• AM/FM Radio: Automatic scanning and memory storage for radio channels.
• Bluetooth Wireless Function: Seamless connection to Bluetooth-enabled devices for audio streaming and hands-free calls.
• AUX Input: Connect external audio devices like computers, MP3/MP4 players, mobile phones, and PSPs.
• Recording Function: Capture audio directly through the device.
• Integrated Flashlight: Provides illumination for convenience.
• Clock & Alarm Clock: Built-in time display and alarm functionality.
• Time Shutdown: Set a timer for automatic power off.
• User-Friendly Controls: Number buttons for direct selection of radio channels and music tracks.
• Music Repeating Function: Control playback to repeat current track, folder, or all tracks.
• Folder Navigation: Easily browse through music folders.
• Rechargeable Battery: Equipped with a 2000mAh 18650 Lithium battery, offering over 5 hours of playback at maximum volume on a full charge.
• Battery Indicator: Displays current battery power level.
• Power-Off Memory: Resumes playback from the last moment in TF or USB mode.
• Bass Sound: Enhanced audio output with bass.
• Type-C Charging Port: Modern and convenient charging interface.

3. Package Contents

Please check the box for the following items:

• EONKO L-528 Multi Function Stereo Radio Speaker
• USB Charging Cable
• User Manual
• Wrist Strap
• 8GB Micro SD Card (included with some models)

Figure 3.1: Package Contents (Silver Model)

Figure 3.2: Package Contents (Black Model)

Figure 3.3: Package Contents (Gold Model)

4. Controls and Ports Overview

Familiarize yourself with the various buttons, ports, and features of your EONKO L-528 speaker.

Figure 4.1: Front Panel Controls and Side Ports

Front Panel Controls:

• Power Button: Turns the device ON/OFF.
• Play/Pause: Controls media playback.
• Previous/Next Track: Navigates through tracks or radio channels.
• MODE Button: Switches between different modes (FM, AM, Bluetooth, TF, USB, AUX).
• REC (Record): Initiates or stops recording.
• TIME: Sets the clock.
• ALARM: Sets the alarm clock.
• Number Pad (0-9): Direct input for radio frequencies or track numbers.

Side and Top Ports/Controls:

• Antenna: Extend for better radio reception.
• USB Port: For USB flash drive playback.
• TF Card Slot: For TF (Micro SD) card playback.
• AUX Input: 3.5mm jack for external audio sources.
• Type-C Charging Port: For charging the device.
• Headphone Jack: 3.5mm jack for private listening.
• Tuning Knob: Adjusts radio frequency or volume.
• Flashlight Switch: Activates the built-in flashlight.

Figure 4.2: Top View of Ports

Figure 4.3: Side View with Tuning Knob

Figure 4.4: Rear View with Battery Compartment and Product Label

5. Setup

5.1. Charging the Battery

1. Connect the provided USB charging cable to the Type-C port on the speaker.
2. Connect the other end of the USB cable to a computer's USB port or a compatible USB power adapter (5V >= 500mA).
3. The charging indicator will illuminate. It will turn green once the battery is fully charged.
4. A full charge typically takes 4-6 hours.

5.2. Inserting TF Card or USB Drive

1. Ensure the speaker is powered off.
2. Carefully insert your TF (Micro SD) card or USB flash drive into the respective slot. Ensure it is inserted correctly to avoid damage.
3. The device supports storage devices up to 32GB.

6. Operation

6.1. Power ON/OFF

Press the Power Button () to turn the speaker ON or OFF.

6.2. Mode Selection

Press the MODE button to cycle through available modes: FM Radio, AM Radio, Bluetooth, TF Card, USB Drive, and AUX Input.

6.3. FM/AM Radio Operation

1. Extend the antenna for optimal reception.
2. Switch to FM or AM mode using the MODE button.
3. Automatic Scan and Memory: For first-time use or to rescan, press and hold the MODE button for 3 seconds. The radio will automatically scan and save available channels.
4. Manual Tuning: Use the Tuning Knob on the side to fine-tune frequencies.
5. Channel Selection: After scanning, press the Previous/Next Track buttons () to navigate through saved channels. Alternatively, use the Number Pad to directly enter a channel frequency.

6.4. Bluetooth Mode

1. Switch to Bluetooth mode using the MODE button. The display will show "BT".
2. On your mobile device, enable Bluetooth and search for available devices.
3. Select "L-528" from the list to pair. A voice prompt will confirm successful connection.
4. You can now play audio from your device through the speaker.
5. For hands-free calls, the speaker's built-in microphone will be used.

6.5. MP3 Playback (TF Card / USB Drive)

1. Insert a TF card or USB drive with MP3 files.
2. Switch to TF or USB mode using the MODE button. The speaker will automatically start playing MP3 files.
3. Use the Play/Pause button to control playback.
4. Use the Previous/Next Track buttons to skip tracks.
5. Use the Number Pad to directly select a track number.
6. Music Repeating Function: Press the repeat button (often combined with another function, refer to Figure 4.1) to cycle through repeat modes: ONE (repeat current track), FOLD (repeat current folder), ALL (repeat all tracks).
7. Folder Selection: Use the dedicated folder buttons (if available, refer to Figure 4.1) to navigate between different music folders on your storage device.

6.6. AUX Input

1. Connect one end of a 3.5mm audio cable (not included) to the AUX input port on the speaker.
2. Connect the other end to the headphone jack or audio output of your external device.
3. Switch to AUX mode using the MODE button.
4. Play audio from your external device. Volume can be controlled via the speaker's tuning knob or the external device.

6.7. Recording Function

1. Ensure a TF card or USB drive is inserted for storage.
2. Press the REC button to start recording.
3. Press REC again to stop and save the recording.

6.8. Clock and Alarm Clock

1. Setting Time: Press the TIME button and use the number pad to set the current time.
2. Setting Alarm: Press the ALARM button and use the number pad to set the alarm time.

6.9. Flashlight

Slide the Flashlight Switch (located on the side, near the flashlight) to turn the flashlight ON or OFF.

6.10. Setting Time Shutdown

Press the TIME button multiple times or hold it (refer to specific manual for exact sequence) to set a timer for the speaker to automatically power off after a set duration.

6.11. Volume Control

Adjust the Tuning Knob on the side to increase or decrease the volume.

7. Maintenance

• Cleaning: Use a soft, dry cloth to clean the exterior of the speaker. Do not use abrasive cleaners or solvents.
• Storage: Store the speaker in a cool, dry place away from direct sunlight and extreme temperatures.
• Battery Care: To prolong battery life, charge the device regularly, even if not in frequent use. Avoid fully discharging the battery for extended periods.
• Water Resistance: This device is not waterproof. Avoid exposure to water or high humidity.

8. Troubleshooting

• No Power: Ensure the battery is charged. Connect the speaker to a power source using the Type-C cable.
• No Sound: Check the volume level. Ensure the correct mode is selected. If using AUX, check the cable connection and the volume on the external device.
• Poor Radio Reception: Extend the antenna fully. Try repositioning the speaker. Perform an automatic channel scan to update available stations.
• Bluetooth Pairing Issues: Ensure the speaker is in Bluetooth mode and discoverable. Turn off and on Bluetooth on your mobile device and try pairing again. Make sure no other device is currently connected to the speaker via Bluetooth.
• TF Card/USB Drive Not Reading: Ensure the card/drive is inserted correctly and is not damaged. Check that the files are in MP3 format. The device supports up to 32GB.
• Recording Not Working: Ensure a TF card or USB drive is inserted and has sufficient free space.

9. Specifications

10. User Tips

• Improving Radio Reception: If you are having trouble finding radio stations, fully extend the antenna and try moving the speaker to a different location. Sometimes, even a slight change in position can significantly improve signal strength.
• Maximizing Battery Life: For optimal battery performance, avoid frequently running the battery completely dry. Charge it regularly, even if you only use it for short periods.

11. Warranty and Support

This product comes with a standard manufacturer's warranty. For detailed warranty information, technical support, or service inquiries, please refer to the warranty card included in your package or contact the retailer where you purchased the product. Keep your proof of purchase for warranty claims.