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Item #:
222507080
ZK-TB21 Power Amplifier Board Bluetooth5.1 TPA3116 Chip with Subwoofer 2.1 Channel 50W2+100W, DC 12-24V Bluetooth and AUX Inputs
Item #:
222507080
USD 29
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from US
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In stock
Imported from USA store
QTY:
Order now and get it around Thursday, July 09
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ZK-MT21 Bluetooth power amplifier board has multiple protection mechanisms to ensure its safe operation.
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What Stands Out
High Power Output
Delivers 50W2+100W power, ensuring robust sound quality suitable for both music and movies, rivaling higher-end systems without the price tag.
Bluetooth 5.1 Connectivity
Equipped with the latest Bluetooth 5.1 technology, offering stable and quick wireless connections for seamless audio streaming from multiple devices.
Versatile Inputs
Compatible with both Bluetooth and AUX inputs, providing flexibility for various audio sources, making it ideal for home theaters or casual listening.
Product Details
| Item Weight | 1 lbs (450 grams) |
Who Should Buy?
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Home Theater Users
Ideal for users looking to enhance their home audio experience with powerful sound and subwoofer support.
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DIY Audio Enthusiasts
Perfect for hobbyists who enjoy building their own audio systems and seek quality components for customization.
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Portable Sound Solutions
Great for users needing a compact amplifier with Bluetooth connectivity for mobile or outdoor use.
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Professional Musicians
May lack the high fidelity and output required for live performances or professional recording settings.
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High-Powered Audio Systems
Not suitable for users requiring extremely high wattage or more complex audio configurations.
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Non-Bluetooth Users
Users without Bluetooth-compatible devices may miss out on connectivity options available with this amplifier.
Product Description
ZK-TB21 Power Amplifier Board Bluetooth5.1 TPA3116 Chip with Subwoofer 2.1 Channel 50W2+100W, DC 12-24V Bluetooth and AUX Inputs
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Customer Questions & Answers
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Question:
What is the power output of the Bluetooth Power Amplifier Board ZK-MT21?
Answer: The ZK-MT21 Bluetooth Power Amplifier Board features a total power output of 50W × 2 + 100W, providing a robust audio experience. The amplifier is designed to deliver impressive sound quality with sufficient volume for various settings, such as home theaters, outdoor gatherings, or DIY audio projects. The integration of treble and bass controls allows users to customize their listening experience according to their preferences and the acoustics of their environment. -
Question:
How does Bluetooth connectivity work with the ZK-MT21 amplifier?
Answer: The ZK-MT21 amplifier utilizes Bluetooth technology to facilitate wireless audio streaming from compatible devices such as smartphones, tablets, or laptops. Once connected, users can enjoy music, podcasts, or any audio content without the hassle of cables. This feature is particularly beneficial in creating a clutter-free audio setup in your living space, allowing for easy and convenient control of your audio experiences. -
Question:
Can the ZK-MT21 amplifier be used with a subwoofer?
Answer: Yes, the ZK-MT21 amplifier is specifically designed to support subwoofers, making it a perfect choice for creating a 2.1 channel audio system. With its ability to effectively power a subwoofer, this amplifier enhances the low-frequency audio output, delivering rich bass tones that can elevate your listening experience. This makes it ideal for home theater setups or music listening, providing a fuller and more engaging sound. -
Question:
What kind of power supply is required for the ZK-MT21 amplifier?
Answer: The ZK-MT21 amplifier requires a power supply within the range of 12V to 24V. It is essential to use a suitable power source that meets these specifications to ensure optimal performance and stability. Whether powering it through a battery or a wall adapter, users should always match the voltage requirements to avoid potential damage, ensuring longevity and reliability during use. -
Question:
Is the ZK-MT21 amplifier suitable for outdoor use?
Answer: The ZK-MT21 amplifier can be used outdoors, provided it is kept in a sheltered environment to protect it from water and extreme weather conditions. Its robust power output and Bluetooth capability make it ideal for outdoor parties, gatherings, or events where high-quality sound is essential. Users can create a dynamic audio setup that entertains guests in open spaces, enhancing the overall atmosphere of the occasion. -
Question:
How do I control the treble and bass on the ZK-MT21 amplifier?
Answer: Adjusting the treble and bass on the ZK-MT21 is simple, as it comes equipped with dedicated control knobs. These allow you to easily fine-tune the sound output according to your personal preference or the specific audio content being played. Whether you prefer a more bass-heavy sound for music or a balanced output for dialogue in movies, these controls provide flexibility for a customized audio experience that meets your needs. -
Question:
What types of speakers are compatible with the ZK-MT21 amplifier?
Answer: The ZK-MT21 amplifier is compatible with a wide range of speakers, ideally those designed for use in home audio systems. It can power standard passive speakers effectively, making it suitable for various setups including home theaters, music playback, or DIY projects. When selecting speakers, ensure they match the amplifier's specifications to achieve the best auditory results and avoid any performance issues. -
Question:
How easy is the installation process for the ZK-MT21 amplifier?
Answer: The installation of the ZK-MT21 amplifier is relatively straightforward, making it accessible even for those with minimal technical experience. Most users can set up the amplifier by connecting the power supply, pairing their Bluetooth device, and wiring the speakers with ease. Detailed installation guides are often provided, ensuring that everyone can enjoy high-quality sound without complex installations or setup procedures. -
Question:
Can the ZK-MT21 amplifier be used in a car audio system?
Answer: Yes, the ZK-MT21 amplifier can be incorporated into a car audio system, serving as a strong upgrade for enhanced sound quality. Its Bluetooth connectivity allows users to stream audio directly from mobile devices, while its power output can significantly improve overall audio performance. Installation may require additional equipment or modifications to integrate with existing car systems effectively. -
Question:
Where can I buy the Bluetooth Power Amplifier Board ZK-MT21 in Palau?
Answer: You can buy the Bluetooth Power Amplifier Board ZK-MT21 from Ubuy in Palau. Ubuy offers a reliable shopping experience and a wide variety of electronics, including this amplifier model. On Ubuy, you will find product specifications, user reviews, and convenient delivery options to ensure you get your amplifier quickly and efficiently.
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“The product received very good packaging & safe…Thank You”
16 June 2026 · via Trustpilot
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“The process was smooth, with clear communication and timelines. This was my 1st purchase and I am really impressed. I will definitely be coming back.”
12 June 2026 · via Trustpilot
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Important information
- Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
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USD 29
Order now and get it around Thursday, July 09
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
QTY:
Secured transaction
Ubuy works hard to protect your security and privacy. Our advanced payment security system ensures confidentiality by encrypting your information during transmission using AES (Advanced Encryption Standards) and SSL (Secure Socket Layer) protocols. Your payment details are 100% secure as we do not share your payment details with third party sellers.
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Fastest cross-border delivery
Features & Benefits
- Bluetooth 5.0 and 3.5mm AUX audio input interface
- Treble and bass adjustment for better sound quality
- Compatible with most DC adapters on the market
- Multiple protection mechanisms for safe operation
- Comes with DC conversion plug
- 24/7 after-sales service