Introduction
Thank you for choosing NJSJ H128 USB-Powered Stereo 2.0 Computer Speakers. These compact and portable speakers are designed to deliver clear stereo sound for your desktop, laptop, or other compatible devices. Featuring dynamic RGB lighting and simple plug-and-play functionality, they enhance your audio experience without complex setup.
Image: The NJSJ H128 USB-Powered Stereo 2.0 Computer Speakers in white.
Package Contents
Please verify that all items are present in the package:
- 2 × NJSJ H128 Computer Speakers
- 1 × User Manual
Features
- Enhanced Clear Stereo Sound: Equipped with advanced sound drive units, these desktop speakers deliver full-range 2.0 channel enhanced stereo sound, ensuring distortion-free and noiseless performance.
- Dynamic RGB Lighting Effects: The speakers feature automatic cycling RGB lighting effects that create a captivating atmosphere. Note: Lighting effects cannot be controlled or turned off.
- Mini Size & Portable: Weighing only 350g, these computer speakers are lightweight and easy to carry, suitable for various environments.
- Easy to Use: Simple plug-and-play operation with no drivers or software installation required.
- Wide Compatibility: Supports most devices with a standard 3.5mm audio jack, including PCs, laptops, tablets, and smartphones. USB power is required.
Image: An exploded view illustrating the internal components of the 6W full-frequency speaker driver.
Image: NJSJ speakers displaying dynamic RGB lighting effects on a desktop setup.
Setup
Follow these steps to set up your NJSJ H128 speakers:
- Connect Power: Plug the USB connector into an available USB port on your computer, laptop, or a USB power adapter (5V DC). This provides power to the speakers.
- Connect Audio: Plug the 3.5mm audio jack into the headphone or audio output port of your device (e.g., computer, laptop, smartphone).
- Placement: Position the two speakers on either side of your monitor or device for optimal stereo sound.
Image: The NJSJ speakers connected to a laptop, demonstrating the USB power and 3.5mm audio jack connections for plug-and-play functionality.
Image: A diagram illustrating the wide compatibility of the NJSJ speakers with various devices such as PCs, laptops, power banks, adapters, tablets, projectors, and phones, all requiring USB power and a 3.5mm audio interface.
Setup Demonstration Video
Video: A demonstration comparing the sound quality of NJSJ speakers versus laptop speakers, and showing the connection process. This video also highlights the RGB lighting feature.
Operating Instructions
Once connected, the speakers will power on automatically. No additional software or drivers are needed.
- Volume Control: Adjust the volume using the inline volume control dial located on the speaker cable. Slide the dial up to increase volume and down to decrease it.
- RGB Lighting: The speakers feature automatic cycling RGB lighting. These lights are always active when the speakers are powered on and cannot be manually turned off or controlled.
Image: A hand holding one of the compact NJSJ speakers, illustrating its dimensions (2.8"D x 2.6"W x 3.9"H) and showing the inline volume control on the cable.
RGB Lighting Demonstration Video
Video: A short video showcasing the automatic cycling RGB lighting effects of the NJSJ speakers.
Maintenance
To ensure the longevity and optimal performance of your speakers, follow these maintenance guidelines:
- Cleaning: Use a soft, dry cloth to wipe the exterior of the speakers. Avoid using abrasive cleaners, solvents, or harsh chemicals.
- Environment: Keep the speakers in a dry environment, away from direct sunlight, extreme temperatures, and excessive dust.
- Handling: Handle the speakers with care. Avoid dropping them or subjecting them to strong impacts.
Troubleshooting
If you encounter issues with your NJSJ H128 speakers, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No sound | USB power not connected or faulty; 3.5mm audio jack not fully inserted; device volume too low or muted. | Ensure USB cable is securely plugged into a working port. Verify 3.5mm audio jack is fully inserted. Check device volume settings and speaker's inline volume control. |
| Distorted or crackly sound | Volume set too high on device or speakers; audio source quality is low; loose connections. | Reduce the volume on both your device and the speaker's inline control. Ensure all connections are secure. Test with a different audio source or device. |
| RGB lights not working | Speakers not receiving power. | Confirm the USB power cable is correctly connected and receiving power. The RGB lights are automatic and cannot be turned off. |
Specifications
| Feature | Specification |
|---|---|
| Brand | NJSJ |
| Model Number | H128 |
| Speaker Type | Dual Speaker, Stereo 2.0 |
| Connectivity Technology | Auxiliary (3.5mm), USB (for power) |
| Speaker Maximum Output Power | 6 Watts |
| Frequency Response | 150 Hz (Lower bound provided) |
| Audio Output Mode | Stereo |
| Input Voltage | 5 Volts (DC) |
| Impedance | 4 Ohms |
| Signal-to-Noise Ratio | 80 dB |
| Item Dimensions (D x W x H) | 2.8"D x 2.6"W x 3.9"H |
| Item Weight | 350 Grams |
| Material | Plastic |
| Additional Features | LED Light, Lightweight, Portable, USB Port |
Warranty and Support
NJSJ provides a 2-year limited warranty for the H128 Computer Speakers. This warranty covers manufacturing defects and issues arising from normal use.
For warranty claims, technical assistance, or any product-related inquiries, please contact NJSJ customer support through the retailer where the product was purchased or refer to the contact information provided on the NJSJ official website.