1. Introduction
Thank you for purchasing the Select Sound Daewoo Megabox DW-1988 TWS Bluetooth Rechargeable Speaker. This portable speaker is designed to deliver clear, dynamic sound with 16W of power, featuring versatile connectivity options including Bluetooth, USB, TF card, FM radio, and AUX input. It also includes TWS (True Wireless Stereo) functionality for pairing two speakers, adjustable bass and treble, echo control, and vibrant RGB lighting to enhance your audio experience.

Figure 1.1: Select Sound Daewoo Megabox DW-1988 Speaker with Microphone
This image shows the black portable speaker from a slight angle, highlighting its two large speaker grilles with colorful RGB lighting effects. An included microphone is visible resting on the left side of the speaker. The speaker has a handle on the right side for portability.
2. Safety Information
- Read all instructions carefully before using the product.
- Keep the speaker away from water, moisture, and extreme temperatures.
- Do not expose the speaker to direct sunlight for extended periods.
- Do not attempt to disassemble or repair the speaker yourself. Refer all servicing to qualified personnel.
- Use only the specified charging voltage (120 Volts).
- Keep out of reach of children.
- Clean the speaker with a soft, dry cloth. Do not use abrasive cleaners.
3. Package Contents
Ensure all items are present in the package:
- Select Sound Daewoo Megabox DW-1988 TWS Bluetooth Rechargeable Speaker
- Microphone
- Charging Cable (not explicitly listed but implied by "rechargeable")
- User Manual (this document)
4. Product Overview
4.1 Key Features
- Bluetooth Connectivity: Wireless audio streaming up to 10 meters.
- True Wireless Stereo (TWS): Connect two DW-1988 speakers for a stereo sound experience.
- Multiple Playback Modes: Supports USB drive, TF (microSD) card, FM radio, and AUX input.
- Dynamic Sound: 16W output with clear and dynamic sound effects.
- Adjustable Audio: Controls for Treble, Bass, and Echo.
- RGB Lighting: Integrated LED lights with on/off control.
- Portable Design: Compact and rechargeable for on-the-go use.
- Included Microphone: For karaoke or public speaking.

Figure 4.1: Key Features of the Megabox DW1988 Speaker
This graphic displays the speaker centrally with icons and text highlighting its main features: Bluetooth connectivity, TWS (True Wireless Stereo) capability, RGB lights, and clear audio fidelity.
4.2 Controls and Ports
Familiarize yourself with the control panel located on the speaker's rear:

Figure 4.2: Control Panel Layout
This image provides a detailed view of the speaker's rear control panel. It features an LED display, various buttons for mode selection, playback control (PREV, PLAY/PAUSE, NEXT), microphone volume, and main volume. Input ports include MIC IN, AUX IN, USB, and TF card slots. A 5V 1A charging port is also visible, along with a power ON/OFF switch.
- LED Display: Shows current mode, battery level, and track information.
- OFF/ON Switch: Powers the speaker on or off.
- MIC IN: 6.35mm jack for connecting the included microphone.
- AUX IN: 3.5mm jack for connecting external audio devices via cable.
- USB Port: For playing audio from USB flash drives.
- TF Card Slot: For playing audio from TF (microSD) cards.
- 5V 1A CHARGE LED: Charging indicator light and power input.
- MODE Button: Switches between Bluetooth, USB, TF, FM, and AUX modes. Also controls RGB lights (on/off).
- PREV Button: Skips to the previous track or station.
- PLAY/PAUSE Button: Plays or pauses audio. In FM mode, long press to auto-scan stations.
- NEXT Button: Skips to the next track or station.
- MIC VOL: Adjusts microphone volume.
- VOLUME: Adjusts the main speaker volume.
- TREBLE Knob: Adjusts the high-frequency sound.
- BASS Knob: Adjusts the low-frequency sound.
- ECHO Knob: Adjusts the echo effect for the microphone.
5. Setup
5.1 Charging the Speaker
- Before first use, fully charge the speaker.
- Connect the charging cable to the 5V 1A CHARGE port on the speaker and to a compatible USB power adapter (not included).
- The LED indicator will illuminate during charging and turn off when fully charged.
- A full charge provides approximately 4 hours of battery life.
5.2 Powering On/Off
- To power on, slide the OFF/ON switch to the "ON" position.
- To power off, slide the OFF/ON switch to the "OFF" position.
6. Operating Instructions
6.1 Bluetooth Pairing
- Power on the speaker. It will automatically enter Bluetooth pairing mode, indicated by a flashing Bluetooth icon on the LED display and an audible prompt.
- Enable Bluetooth on your mobile device (smartphone, tablet, laptop).
- Search for "DW-1988" or "Megabox" in the list of available Bluetooth devices.
- Select "DW-1988" to connect. Once connected, you will hear a confirmation sound, and the Bluetooth icon will stop flashing.
- You can now play audio wirelessly from your device. The operating range is approximately 10 meters.
6.2 True Wireless Stereo (TWS) Function
TWS allows you to connect two DW-1988 speakers wirelessly for a true stereo sound experience.
- Ensure both DW-1988 speakers are powered on and in Bluetooth mode (not connected to any device).
- On one of the speakers (this will be the primary speaker), long press the MODE button until you hear a TWS pairing prompt.
- The two speakers will automatically search and connect to each other. Once connected, you will hear a confirmation sound.
- Now, connect your mobile device to the primary speaker via Bluetooth as described in Section 6.1. The audio will play in stereo across both speakers.
6.3 USB / TF Card Playback
- Insert a USB flash drive or TF (microSD) card into the respective slot on the control panel.
- The speaker will automatically switch to USB or TF mode and begin playing audio files (MP3, WAV, etc.).
- Use the PREV, PLAY/PAUSE, and NEXT buttons to control playback.
6.4 FM Radio
- Press the MODE button repeatedly until "FM" appears on the LED display.
- Long press the PLAY/PAUSE button to initiate an automatic scan for FM radio stations. The speaker will save all found stations.
- Use the PREV and NEXT buttons to navigate between saved stations.
6.5 AUX Input
- Connect one end of a 3.5mm audio cable (not included) to the AUX IN port on the speaker.
- Connect the other end to the audio output jack of your external device (e.g., MP3 player, computer).
- Press the MODE button repeatedly until "AUX" appears on the LED display.
- Control playback and volume from your external device.
6.6 RGB Lighting Control
- The RGB lights are typically on by default.
- To turn the RGB lights on or off, press the MODE button briefly.
6.7 Microphone Usage
- Connect the included microphone to the MIC IN port.
- Adjust the microphone volume using the MIC VOL knob.
- Adjust the echo effect using the ECHO knob.
6.8 Volume and Tone Control
- Adjust the overall speaker volume using the VOLUME knob.
- Adjust the high frequencies using the TREBLE knob.
- Adjust the low frequencies using the BASS knob.
7. Maintenance
- Cleaning: Wipe the speaker with a soft, dry, lint-free cloth. Do not use liquid cleaners or aerosols.
- Storage: When not in use for extended periods, store the speaker in a cool, dry place away from direct sunlight and extreme temperatures.
- Battery Care: To prolong battery life, avoid fully discharging the battery frequently. Charge the speaker regularly, even if not in use.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Speaker does not power on. | Battery is depleted. | Charge the speaker fully. |
| No sound. | Volume is too low or muted. Incorrect mode selected. | Increase volume. Press MODE button to select correct input source (Bluetooth, USB, TF, FM, AUX). |
| Bluetooth device cannot connect. | Speaker not in pairing mode. Device too far. Interference. | Ensure speaker is in Bluetooth mode and flashing. Move device closer. Turn off other Bluetooth devices. |
| TWS pairing fails. | Speakers are too far apart or already connected to another device. | Ensure both speakers are in Bluetooth mode and not connected to any device. Place them close together and try TWS pairing again. |
| FM radio reception is poor. | Weak signal. | Relocate the speaker to an area with better reception. |
9. Specifications
| Model Name: | Megabox DW-1988 |
| Brand: | Select Sound (Daewoo) |
| Connectivity Technology: | Bluetooth |
| Wireless Communication Range: | 10 meters |
| Speaker Type: | Portable, Tweeter |
| Speaker Amplification Type: | Active |
| Max Speaker Output Power: | 80 Watts (Peak), 16 Watts (RMS, from description) |
| Frequency Response: | 40 GHz (Note: This seems like a typo in source, likely 40 Hz - 20 kHz, but using provided data) |
| Surround Sound Channel Configuration: | 1.0 (Mono, but TWS allows stereo) |
| Subwoofer Diameter: | 25 Centimeters |
| Power Source: | Battery |
| Average Battery Life: | 4 Hours |
| Input Voltage: | 120 Volts |
| Material: | Plastic |
| Color: | Black |
| Product Dimensions (L x W x H): | 57cm x 29cm x 27cm |
| Control Method: | Application (Note: This contradicts physical buttons, focusing on physical controls in this manual.) |
| Special Features: | Bluetooth, RGB light up |
| Compatible Devices: | Laptop, MP3 Player, Smartphone, Tablet |

Figure 9.1: Speaker Dimensions
This image illustrates the dimensions of the speaker: approximately 55 cm in length, 27.3 cm in height, and 24.8 cm in depth.
10. Warranty and Support
The Select Sound Daewoo Megabox DW-1988 speaker comes with a Limited Warranty. For specific details regarding warranty coverage, duration, and terms, please refer to the warranty card included with your product or contact Select Sound customer support.
For technical assistance, troubleshooting beyond this manual, or warranty claims, please contact the manufacturer or retailer where you purchased the product. Keep your proof of purchase for warranty validation.
You can visit the Select Sound Store on Amazon for more information.






