NJSJ H128 Computer Speakers User Manual

Introduction

Welcome to your NJSJ H128 Computer Speakers. These 2.0 USB-powered stereo speakers are designed to provide clear audio for your PC, desktop, laptop, cellphone, or monitor. Featuring dynamic RGB LED lighting and a compact design, they are suitable for various environments, enhancing your audio experience for music, movies, and games.

What's in the Box

• 2 x NJSJ H128 Speakers
• 1 x User Manual

Image: The NJSJ H128 speakers shown with their packaging and included user manual.

Product Features

• Portable Design: Compact size (2.6" x 2.8" x 3.9" / 6.5cm x 7cm x 10cm) for easy placement on any desk and convenient portability.
• Clear Stereo Sound: Equipped with a 6W driver and a full-range 2.0 channel enhanced stereo core, providing clear audio without distortion, even at maximum volume. Ideal for music, movies, audiobooks, and games.
• Dynamic RGB LED Backlight: Features RGB lights that cycle randomly through colors during operation, enhancing the visual atmosphere. Please note: The lights cannot be turned off or controlled manually during use.
• Multi-Compatible: USB-powered (5V) and 3.5mm audio interface ensures broad compatibility with various devices including PCs, desktops, mobile phones, laptops, gaming consoles (Xbox One, PS4), iMac, Macbooks, or any device with a standard 3.5mm headphone jack. Compatible with operating systems such as Windows, Mac OS, Chrome OS, Linux, and UNIX.
• Simple Operation: Plug and play functionality requires no additional drivers. Features an in-line volume control for easy adjustment of audio levels.

Image: Diagram illustrating the internal components of the NJSJ H128 speaker, emphasizing its 6W dual-channel stereo for clear sound.

Image: The NJSJ H128 speakers displaying their dynamic RGB lighting feature while set up with a computer monitor.

Setup Instructions

Follow these steps to set up your NJSJ H128 speakers:

1. Connect USB Power: Insert the USB-A connector into an available USB port on your computer, laptop, power bank, or a 5V USB power adapter. This connection provides power to the speakers.
2. Connect Audio Input: Plug the 3.5mm audio jack into the headphone output port of your audio source device (e.g., PC, laptop, smartphone).
3. Power On: The speakers will power on automatically once both the USB and 3.5mm audio connections are successfully made. The RGB lights will begin their dynamic cycling.
4. Adjust Volume: Use the in-line volume control on the speaker cable to set your preferred audio level.

Image: Illustration showing the NJSJ H128 speakers connected via USB for power and 3.5mm jack for audio to various devices like laptops, tablets, and phones.

Video: This video demonstrates the simple plug-and-play setup of the NJSJ H128 speakers, showing how to connect the USB and 3.5mm audio jacks to a laptop and adjust the volume.

Operating Instructions

The NJSJ H128 speakers are designed for straightforward operation.

Volume Control

An in-line volume control knob is integrated into the speaker cable. Rotate the knob to the right to increase the audio volume and to the left to decrease it.

Image: Close-up of the in-line volume control on the NJSJ H128 speaker cable, showing the plus and minus indicators for adjustment.

RGB LED Lights

The speakers feature dynamic RGB LED backlights that cycle randomly through various colors. These lights are always active when the speakers are powered on and cannot be manually controlled or turned off.

Maintenance

Proper care and maintenance will ensure the longevity of your NJSJ H128 speakers:

• Cleaning: Use a soft, dry cloth to gently wipe the speaker surfaces. Avoid using liquid cleaners, solvents, or abrasive materials, as these can damage the finish or internal components.
• Storage: When not in use for extended periods, store the speakers in a cool, dry place away from direct sunlight, high humidity, and extreme temperatures.
• Handling: Avoid dropping the speakers or exposing them to excessive force or impacts, which could damage internal circuitry or the casing.
• Water Exposure: These speakers are not waterproof. Keep them away from all liquids and moisture to prevent electrical damage.

Image: The NJSJ H128 speakers positioned neatly on a desk next to a laptop, illustrating a typical clean setup.

Troubleshooting

If you encounter issues with your NJSJ H128 speakers, please refer to the following common problems and solutions:

No Sound

• Check Connections: Ensure both the USB power cable and the 3.5mm audio jack are securely plugged into their respective ports on your device and the speakers. A loose connection can prevent audio output.
• Volume Level: Verify that the in-line volume control on the speaker cable is turned up sufficiently. Also, check that your device's volume is not muted or set too low.
• Audio Output Settings: On your computer or device, navigate to the audio output settings and confirm that the NJSJ speakers are selected as the default playback device.
• Test with Another Device: Connect the speakers to a different audio source (e.g., a smartphone or another computer) to determine if the issue lies with the speakers or the original device.

Static or Distorted Sound

• Volume Level: Reduce the volume on both the speakers and your device. Excessive volume can lead to distortion.
• Interference: Move the speakers away from other electronic devices that might be causing electromagnetic interference.
• Cable Condition: Inspect the USB and 3.5mm cables for any visible damage, kinks, or frayed wires. Damaged cables can cause poor audio quality.
• Audio Source Quality: Ensure the audio source itself (e.g., music file, streaming service) is of good quality. Low-quality audio sources can sound distorted through any speaker.

RGB Lights Not Working

• USB Power: Confirm the USB cable is properly connected and receiving power. The RGB lights require USB power to function. If the speakers are producing sound but the lights are off, try a different USB port or power source.
• Speaker Functionality: If the speakers produce sound but the lights remain off after checking the USB connection, there might be an internal issue. In this case, contact customer support.

Specifications

Warranty Information

NJSJ products typically come with a limited warranty. For specific warranty terms, conditions, and duration, please refer to the product packaging or visit the official NJSJ website. It is recommended to retain your purchase receipt as proof of purchase for any warranty claims.

Support

For further assistance, technical support, or warranty inquiries regarding your NJSJ H128 Computer Speakers, please visit the official NJSJ website or contact their customer service department.

NJSJ Official Store: Visit NJSJ Store on Amazon