#90

NJSJ

NJSJ NJSJ H128 Computer Speakers

Name: NJSJ H128 Computer Speakers
Brand: NJSJ
SKU: B0D9248298
Price: 18 JPY
Availability: InStock
Rating: 3 (1 reviews)

Rating

Model: H128

$18(incl. tax)Amazon price as of 2025-08-12

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Product Overview

The NJSJ H128 Computer Speakers are designed as a portable and stylish audio solution for desktops, laptops, and tablets. These 2.0 USB-powered speakers feature a unique RGB lighting design that enhances the atmosphere while in use. They offer easy setup with no drivers needed and convenient in-line volume control. The compact size makes them suitable for travel and saves desktop space. Equipped with a 6W full-frequency driver, they provide clear and distortion-free stereo sound. Compatible with various devices via a 3.5mm aux input, these speakers are ideal for music, videos, and gaming in offices, bedrooms, or dormitories. The package includes two speakers and a user manual, backed by a 24-month after-sales support.

Product Specifications

Total Output Power

Frequency Response

40Hz ~ 18kHzHz

Driver Size

-mm

Impedance

-Ohms

Signal-to-Noise Ratio

80.00dB

Connectivity

Auxiliary, USB

Wireless Connectivity

Volume Control

Button

Headphone Jack

Power Source

Corded Electric

Size & Weight

Weight

12.3 ounces

Hight

3.9 inches

Width

2.6 inches

Depth

2.8 inches

Features

Bluetooth Connection Function

Feature Description

A function that allows wireless connection to devices such as smartphones and tablets via Bluetooth. You can easily play music without connecting cables. Convenient when you want to listen to music casually or remotely control the speaker.

About This Product

These speakers do not have Bluetooth connectivity, which limits wireless convenience. Users will need to rely on the 3.5mm aux input for audio, which may be less convenient for some devices. Bluetooth is a common feature in many modern speakers, so its absence is a notable drawback.

USB Power Supply Function

Feature Description

A function that can be powered via a USB port on a computer or USB power adapter. It can be used easily by connecting to a computer without requiring a separate power adapter. Useful in environments where power outlets are limited.

About This Product

The speakers are powered via USB, which simplifies setup and reduces cable clutter. This is convenient for use with laptops and desktops, as no separate power adapter is needed. However, USB power may limit the maximum volume output compared to speakers with a dedicated power supply.

Headphone Jack Function

Feature Description

A function that allows you to connect headphones or earphones. You can enjoy audio privately without disturbing others around you. Convenient when you want to concentrate on work or watch videos late at night.

About This Product

These speakers do not feature a headphone jack, which limits private listening options. Users will need to disconnect the speakers and connect headphones directly to their device. The absence of a headphone jack is a notable omission for users who frequently switch between speakers and headphones.

Volume Control Function

Feature Description

A function that allows you to easily adjust the speaker volume. You can quickly adjust the volume to your preferred level. Useful when you want to respond to sudden changes in sound volume or environmental sounds.

About This Product

The in-line volume control allows for easy adjustment of the speaker volume. This is a convenient feature for quickly changing the volume without needing to adjust the volume on the connected device. The volume control is located on the cable, which may be less convenient than controls on the speaker itself.

External Input Function

Feature Description

A function that allows connection to external audio devices via an AUX or other input terminal. You can play audio from devices that do not support Bluetooth. Useful when you want to connect to older devices or devices without Bluetooth.

About This Product

The 3.5mm aux input allows for connection to a wide range of devices, including older devices without USB. This provides versatile compatibility and ensures the speakers can be used with various audio sources. The 3.5mm connection is a standard audio input, making it easy to connect to most devices.

Automatic Power Off Function

Feature Description

A function that automatically turns off the power after a certain period of inactivity. Prevents unnecessary power consumption and saves energy. Provides peace of mind even if you forget to turn off the power.

About This Product

These speakers do not have an automatic power-off function, which may lead to unnecessary power consumption if you forget to turn them off. This means the speakers will remain on as long as they are connected to a power source. The lack of this feature is a minor inconvenience, but may be a concern for energy-conscious users.

SHOPSTAFF Rating Score

#90

Ranked #90 out of 100 products in Category

3.0

Overall Rating

The NJSJ H128 speakers are a budget-friendly option for basic audio needs. The RGB lighting adds a visual appeal, but the sound quality and volume are limited compared to higher-end models. They are suitable for casual use in small spaces, but may not satisfy users seeking high-fidelity audio or powerful sound. Durability is a concern given the price point and materials used.

Sound Quality (Frequency Response)

3.0

Rating Criteria Explanation

The frequency response of computer speakers indicates the range of sound frequencies (measured in Hertz, Hz) that the speaker can reproduce. A wider frequency response generally means the speaker can reproduce a broader spectrum of sounds, from deep bass to high-pitched treble, resulting in a more detailed and realistic listening experience. For example, a speaker with a frequency response of 20Hz - 20kHz covers the entire range of human hearing. If you enjoy music with a lot of bass, like electronic music or hip-hop, pay attention to how low the frequency response goes. A lower number indicates deeper bass. Consider your primary use case: for general use, a standard range is fine, but for critical listening or music production, a wider, flatter frequency response is desirable to ensure accurate sound reproduction.

Rating Comments

The frequency response of 40Hz to 18kHz provides a decent range for general listening, but may lack the depth and clarity found in higher-end speakers. Bass response is adequate for casual use, but not ideal for bass-heavy music genres or critical listening.

Wattage (Power Output)

2.5

Rating Criteria Explanation

Wattage indicates the speaker's power output, directly influencing its loudness. Higher wattage generally translates to a louder speaker that can fill a larger room without distortion. However, wattage isn't the sole determinant of loudness; speaker efficiency also plays a crucial role. A speaker with high wattage but low efficiency might not sound as loud as a lower-wattage, high-efficiency speaker. Consider the size of your room and your typical listening volume. For a small desk setup, low-wattage speakers (e.g., 5W) may suffice. For a larger room or for listening at higher volumes, consider speakers with higher wattage (e.g., 20W or more). Also, note that peak wattage is often advertised, which is the maximum power the speaker can handle for a short burst. RMS (Root Mean Square) wattage is a more accurate representation of the speaker's continuous power output.

Rating Comments

With a maximum output of 6W, these speakers are suitable for small rooms and quiet environments. The volume may not be sufficient for larger spaces or noisy settings. Expect limited dynamic range and potential distortion at higher volumes.

Connectivity Options (USB, 3.5mm, Bluetooth)

3.0

Rating Criteria Explanation

Computer speakers offer various connectivity options, each with its advantages and disadvantages. USB connectivity often provides a cleaner audio signal and can sometimes power the speakers directly, reducing cable clutter. A 3.5mm audio jack is a universal connection that works with most devices but can be more susceptible to noise. Bluetooth connectivity allows for wireless audio streaming from smartphones, tablets, and laptops, offering greater flexibility. Consider your devices and how you intend to use the speakers. If you want a simple setup with minimal cables, USB or Bluetooth might be preferable. If you need to connect to older devices or devices without Bluetooth, a 3.5mm jack is essential. Some speakers offer multiple connectivity options, providing greater versatility.

Rating Comments

The inclusion of both USB and 3.5mm aux input provides compatibility with a wide range of devices. However, the lack of Bluetooth connectivity limits wireless convenience. USB is used for power only, audio is through 3.5mm.

Speaker Configuration (2.0, 2.1)

3.5

Rating Criteria Explanation

Speaker configuration refers to the number of speakers and their roles. A 2.0 system consists of two speakers (left and right) and provides stereo sound. A 2.1 system includes two speakers and a separate subwoofer for enhanced bass response. The choice depends on your listening preferences. 2.0 systems are suitable for general use and music listening where deep bass isn't critical. 2.1 systems are ideal for gaming, movies, and music genres that benefit from strong bass, such as electronic music and action movie soundtracks. Consider the space available on your desk. A 2.1 system requires more space for the subwoofer. Think about whether you prioritize clear stereo separation or emphasized bass.

Rating Comments

The 2.0 configuration delivers stereo sound, suitable for general listening and basic gaming. The absence of a dedicated subwoofer means bass response will be limited compared to 2.1 systems. Stereo separation is adequate for the price point.

Physical Size and Design

4.0

Rating Criteria Explanation

The physical size and design of computer speakers are important considerations, especially for desktop setups where space is limited. Compact speakers are ideal for small desks or laptops, while larger speakers generally offer better sound quality but require more space. The design should also complement your aesthetic preferences. Consider the available space on your desk and the overall look you want to achieve. Measure the dimensions of the speakers to ensure they fit comfortably in your workspace. Think about the placement of the speakers: will they be placed on either side of your monitor, or will they be mounted on stands? The design can also affect the sound dispersion. Some speakers are designed to project sound directly forward, while others offer wider sound dispersion.

Rating Comments

The compact size and lightweight design make these speakers highly portable and easy to place on a desk or carry in a bag. The RGB lighting adds a visual element, though it cannot be controlled. The plastic construction feels somewhat cheap.

Controls and Features (Volume, EQ, Headphone Jack)

2.5

Rating Criteria Explanation

The placement and type of controls are important for ease of use. Easily accessible volume controls are essential for quick adjustments. Some speakers also offer EQ controls to fine-tune the sound to your preferences. A headphone jack is a convenient feature for private listening. Consider where the controls are located (e.g., front, side, or remote). Front-mounted controls are generally more convenient. EQ controls allow you to adjust the bass, treble, and midrange frequencies to customize the sound. A headphone jack allows you to quickly switch between speakers and headphones without having to disconnect cables. Also, look for features like power on/off switch, mute button, and input selection.

Rating Comments

The in-line volume control offers basic adjustment, but lacks advanced features like EQ or a headphone jack. The absence of a power button means the speakers are always on when connected to a power source. Control is limited to volume adjustment.

Manufacturer Reliability and Warranty

1.5

Rating Criteria Explanation

The manufacturer's reputation and the warranty offered are crucial indicators of product quality and reliability. Established brands with a history of producing high-quality audio equipment are generally a safer bet. A longer warranty period provides assurance that the manufacturer stands behind their product. Research the manufacturer's reputation for customer support. Check online reviews and forums to see what other users have experienced with the brand and their products. A good warranty should cover defects in materials and workmanship. Also, consider the ease of contacting customer support and the availability of replacement parts.

Rating Comments

NJSJ is a relatively unknown brand, so long-term reliability is uncertain. The 24-month warranty provides some reassurance, but customer support experiences may vary. Consider the brand's limited track record when evaluating this product.

Cost Performance

4.0

Rating Criteria Explanation

Cost-effectiveness is the ultimate balancing act. It's about finding the speakers that offer the best combination of features, performance, and quality within your budget. Don't just focus on the cheapest option; consider the long-term value. A slightly more expensive speaker that offers better sound quality and durability may be a better investment in the long run. Compare the features and specifications of different speakers in your price range. Read reviews to get an idea of the real-world performance. Consider the overall cost of ownership, including any accessories you may need (e.g., cables, stands). Ultimately, the best value is the one that best meets your needs and budget.

Rating Comments

At a price of $18.99, these speakers offer good value for basic audio needs. The combination of portability, RGB lighting, and decent sound quality makes them a worthwhile option for budget-conscious consumers. However, expect compromises in sound quality and durability.

Brand & Manufacturer Details

NJSJ

NJSJ provides portable and stylish mini computer speakers with unique RGB design and easy volume control for modern homes, offices, and travel.

Considerations

Avoid exposure to excessive moisture
Do not attempt to disassemble the speakers
Keep away from extreme temperatures
Handle the cable with care to prevent damage

Recommended For

Casual listeners on a budget
Users needing portable speakers for travel
Those who enjoy RGB lighting effects
Students in dorm rooms or small apartments

Not Recommended For

Audiophiles seeking high-fidelity sound
Users needing loud speakers for large rooms
Professionals requiring accurate sound reproduction
Those who prefer speakers without lighting effects

Suitable For

Listening to music while working at a desk
Watching videos on a laptop in a small room
Gaming with casual audio requirements
Using as a portable audio solution while traveling

Not Suitable For

Outdoor use due to limited volume
Large venues requiring high volume
Professional audio mixing
Situations needing battery-powered speakers

Frequently Asked Questions (FAQ)

Q.I'm concerned about the sound quality, especially at higher volumes. Do these speakers distort easily?

A.The NJSJ H128 computer speakers are designed to deliver clear stereo sound with minimal distortion. Staff confirmation indicates that the speakers provide good sound quality for their size and price. However, one staff member noted audio distortions developed after a few days of use even at moderate volume. Consider that these are 6W speakers, so they may not compete with higher wattage systems, but most staff members are satisfied.

Q.I'm concerned about the sound quality, especially at higher volumes. Do these speakers distort easily?

Q.I need portable speakers for travel. Are these easy to carry around?

A.Yes, the NJSJ H128 speakers are designed to be portable. They are lightweight (350g) and compact, making them easy to pack in a backpack for travel, business trips, or meetings.

Q.I need portable speakers for travel. Are these easy to carry around?

A.Yes, the NJSJ H128 speakers are designed to be portable. They are lightweight (350g) and compact, making them easy to pack in a backpack for travel, business trips, or meetings.

Q.How easy are these speakers to set up? Do I need to install any software?

A.The NJSJ H128 speakers are very easy to set up. Simply plug them into a USB port for power and connect the 3.5mm jack for audio. No drivers or software installation is required. They power on automatically.

Q.How easy are these speakers to set up? Do I need to install any software?

Q.Do the RGB lights stay synced, and can I turn them off if I find them distracting?

A.The NJSJ H128 speakers feature automatic cycling RGB lighting effects. According to staff confirmation, the lights cannot be controlled or turned off. One staff member mentioned that the LED lights did not synchronize, while others love the lighting. If synchronized or static lighting is important, these may not be the best choice.

Q.Do the RGB lights stay synced, and can I turn them off if I find them distracting?

Q.Will these speakers work with my devices, like my phone, tablet, or older computer?

A.The NJSJ H128 speakers are widely compatible with devices that have a standard 3.5mm jack, including PCs, computers, laptops, tablets, smartphones, iMacs, and MacBooks. Note that USB power is required.

Q.Will these speakers work with my devices, like my phone, tablet, or older computer?

Q.I have a small desk; will these speakers take up too much space?

A.The NJSJ H128 speakers are compact in size, measuring 2.6 x 2.8 x 3.9 inches. Staff confirmation notes that they don't take up much desk space, making them suitable for smaller setups.

Q.I have a small desk; will these speakers take up too much space?

A.The NJSJ H128 speakers are compact in size, measuring 2.6 x 2.8 x 3.9 inches. Staff confirmation notes that they don't take up much desk space, making them suitable for smaller setups.

Q.Are these speakers loud enough for a small room or just for personal listening?

A.The NJSJ H128 speakers have a 6W output, which is suitable for personal listening in a small room. While they are loud enough for many users, they may not compete with higher wattage speakers or a system with a subwoofer. One staff confirmation mentioned the speaker is not very loud.

Q.Are these speakers loud enough for a small room or just for personal listening?

Q.What kind of warranty or support do these speakers come with?

A.The NJSJ H128 speakers come with a 24-month product after-sales support and friendly customer assistance. They also offer a 30-day no-reason refund policy. NJSJ also offers replacements at any time if they are not compatible with your PC or laptop.

Q.What kind of warranty or support do these speakers come with?

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Driver Size	- mm	Impedance	- Ohms
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Bluetooth Connection FunctionUSB Power Supply FunctionHeadphone Jack FunctionVolume Control FunctionExternal Input FunctionAutomatic Power Off Function

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4.5Sound Quality (Frequency Response)

4.7Wattage (Power Output)

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Bluetooth Connection FunctionUSB Power Supply FunctionHeadphone Jack FunctionVolume Control FunctionExternal Input FunctionAutomatic Power Off Function

4.4Overall Rating

4.5Sound Quality (Frequency Response)

4.7Wattage (Power Output)

5.0Connectivity Options (USB, 3.5mm, Bluetooth)

4.3Speaker Configuration (2.0, 2.1)

5.0Physical Size and Design

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Total Output Power	70 W	Frequency Response	54Hz-20K Hz
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Bluetooth Connection FunctionUSB Power Supply FunctionHeadphone Jack FunctionVolume Control FunctionExternal Input FunctionAutomatic Power Off Function

4.3Overall Rating

4.5Sound Quality (Frequency Response)

4.7Wattage (Power Output)

4.0Connectivity Options (USB, 3.5mm, Bluetooth)

4.3Speaker Configuration (2.0, 2.1)

4.6Physical Size and Design

4.4Controls and Features (Volume, EQ, Headphone Jack)

4.0Manufacturer Reliability and Warranty

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Bluetooth Connection FunctionUSB Power Supply FunctionHeadphone Jack FunctionVolume Control FunctionExternal Input FunctionAutomatic Power Off Function

4.3Overall Rating

4.5Sound Quality (Frequency Response)

4.0Wattage (Power Output)

4.0Connectivity Options (USB, 3.5mm, Bluetooth)

4.7Speaker Configuration (2.0, 2.1)

4.6Physical Size and Design

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Wireless Connectivity	Bluetooth	Volume Control	Wireless Touchpad, Buttons
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Bluetooth Connection FunctionUSB Power Supply FunctionHeadphone Jack FunctionVolume Control FunctionExternal Input FunctionAutomatic Power Off Function

4.2Overall Rating

4.3Sound Quality (Frequency Response)

4.0Wattage (Power Output)

4.0Connectivity Options (USB, 3.5mm, Bluetooth)

4.6Speaker Configuration (2.0, 2.1)

4.7Physical Size and Design

4.4Controls and Features (Volume, EQ, Headphone Jack)

3.0Manufacturer Reliability and Warranty

4.5Cost Performance

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See more [2025 Edition] 100 Best Computer Speakers! Selection Guide and Latest Models Introduction comparisons

NJSJ NJSJ H128 Computer Speakers

Product Overview

Product Specifications

Size & Weight

Features

SHOPSTAFF Rating Score

Brand & Manufacturer Details

Considerations

Recommended For

Not Recommended For

Suitable For

Not Suitable For