0 ratings
Item #:
221239060
ZK-TB21 2.1 Channel Amplifier Board with Treble and Bass Control DC 12-24V Audio Power Amplifier Module
Item #:
221239060
GBP 29
Price Details
Price
GBP 29
Excluding Shipping, VAT & Custom charges ( Shipping, VAT and custom charges will be calculated on checkout.
If Item price + shipping is below GBP 135, 20% VAT will be calculated on checkout, if it is equal or above GBP 135, no VAT will be charged. )
0 ratings
Write a review
In stock
Imported from USA store
QTY:
Excluding VAT : VAT will be calculated on the checkout page
Order now and get it around Tuesday, August 11
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.
Our Top Logistics Partners
Support 3.5mm wired input and Bluetooth 5.0 input. With volume control and excellent sound quality.
Buy Now Pay Later
Fast
Shipping
Free
Return*
Secure Packaging
100% Original Products
PCI DSS Compliance
ISO 27001 Certified
Note: Step Down Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Buy Now.
Product Details
| Voltage | 24 Volts |
| Maximum Supply Voltage | 24 Volts (DC) |
| Minimum Supply Voltage | 12 Volts |
| Mounting Type | Surface Mount |
| Number of Channels | 2 |
| Package Type Name | Box |
| Material Type | Metal |
| Manufacturer | Diitao |
| Model | ZK-TB21 |
| Brand Name | Diitao |
| UPC | 701715524941 |
| Part Number | DT20705 |
| Included Components | Amplifier board |
| Item Weight | 1.1 lbs (500 grams) |
Product Description
ZK-TB21 2.1 Channel Amplifier Board with Treble and Bass Control DC 12-24V Audio Power Amplifier Module
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
What is the power output of the ZK-502C Bluetooth Amplifier Board?
Answer: The ZK-502C Bluetooth Amplifier Board provides up to 100 watts of audio output. This powerful output is ideal for driving passive speakers in a home audio system, ensuring robust sound quality for various audio genres. Users can enjoy immersive sound experiences, whether they are streaming music, playing movies, or hosting gatherings. -
Question:
How do I connect my phone to the ZK-502C Amplifier?
Answer: Connecting your phone to the ZK-502C Amplifier is straightforward due to its Bluetooth 5.0 capabilities. Simply enable Bluetooth on your mobile device, search for available devices, and select the ZK-502C. The password-free connection allows for quick pairing, making it convenient to stream your favorite music without complicated setups. -
Question:
Can the ZK-502C Amplifier be used with any passive speakers?
Answer: Yes, the ZK-502C is designed to work with a variety of passive speakers, as long as they fall within the appropriate impedance range. This versatility makes it suitable for different speaker systems, whether you are upgrading a home theater or enhancing a casual listening setup. It allows users to customize their audio experiences based on their speaker preferences. -
Question:
What is the voltage requirement for the ZK-502C Amplifier?
Answer: The ZK-502C Amplifier operates within a voltage range of DC 8-24V. This wide input voltage range provides flexibility for various setups, from powered adapters to battery systems. It's ideal for DIY audio projects or integrating into existing home systems, allowing users to find suitable power sources without limitations. -
Question:
Is the ZK-502C suitable for outdoor use?
Answer: While the ZK-502C is primarily designed for home use, it can be used outdoors provided it is sheltered from elements like rain and direct sunlight. Many users connect this amplifier to outdoor speakers for garden parties or barbecues. However, it is advisable to ensure that the setup is safe and not exposed to moisture. -
Question:
Does the ZK-502C Amplifier support multiple devices at once?
Answer: No, the ZK-502C Bluetooth Amplifier does not support multipoint connectivity, meaning it can only connect to one Bluetooth device at a time. This ensures a stable connection for uninterrupted audio playback, making it an ideal choice for single-user scenarios where consistent sound quality is a priority, such as individual music listening. -
Question:
What audio formats does the ZK-502C support?
Answer: The ZK-502C Amplifier supports a range of audio formats that can be streamed through Bluetooth, including high-quality lossless formats. This allows users to enjoy rich, detailed sound quality for music playback. It ensures that whatever your listening preference, the audio performance will meet your expectations for clarity and depth. -
Question:
Can I use the ZK-502C for gaming?
Answer: Yes, the ZK-502C can enhance your gaming experiences significantly by powering passive speakers, delivering immersive sound effects and clear audio feedback. Gamers often connect it to their console or PC setup for a more engaging gameplay experience. This amplifier helps in creating an extensive soundstage beneficial for competitive and casual gaming alike. -
Question:
What is included in the ZK-502C package?
Answer: The ZK-502C package typically includes the amplifier board itself, along with a user manual that provides setup instructions and connection details. This makes it accessible for both tech-savvy users and beginners trying to enhance their audio systems. Additional components or accessories may be necessary depending on your specific audio setup. -
Question:
Where can I buy the ZK-502C Bluetooth 5.0 Amplifier Board?
Answer: You can buy the ZK-502C Bluetooth 5.0 Amplifier Board at Ubuy. They offer a reliable platform for purchasing this product, complete with customer support and information on various tech gadgets. Ubuy typically provides numerous options for international shipping, making it convenient to obtain this amplifier regardless of your location in UK.
Diitao Editorial Review
No editorial reviews found
Customer Reviews & Ratings
1 customers ratings
-
5 Star
100%
-
4 Star
0%
-
3 Star
0%
-
2 Star
0%
-
1 Star
0%
Review this product
Share your thoughts with other customers
Platform Trust & Buyer Confidence
MA
Mohammad
Verified buyer
“Excellent quality and original too,when ubuy send original things I will appreciate that ,I very satisfied thank you”
23 July 2026 · via Trustpilot
CK
Chitra
Verified buyer
“The order and delivery progress was communicated very well. Package arrived within the estimated time. Products arrived as expected in good condition.”
22-Jul-26 · via Trustpilot
K
kund
Verified buyer
“Good supply of products. Safe payment methods, and shipment worldwide! Genuine products.”
23-Jul-26 · via Trustpilot
OO
Onesi
Verified buyer
“Was my first time buying a product from Ubuy, but I found it so helpful. This is reliable. Gonna place a new order!”
22 July 2026 · via Trustpilot
SJ
SAO JOHN
Verified buyer
“Ubuy is a great online platform to buy stuff. Reliable, fast delivery time and great value for money. I've been using Ubuy online shopping platform for three years now and will continue to do so.”
23 July 2026 · via Trustpilot
Secure Checkout
Global Delivery
Easy Returns
Genuine Products
Product Price History
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.
- Not all the products listed on Ubuy are for sale, as Ubuy is a global search engine. Products are subject to export/trade regulations.
GBP 29
Excluding VAT : VAT will be calculated on the checkout page
Order now and get it around Tuesday, August 11
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
PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.
Our Top Logistics Partners
Fastest cross-border delivery
Features & Benefits
- Bluetooth / AUX
- DC 5V-27V (Above 2A)
- 50W x 2 Stereo
- Bluetooth 5.0
- 50 Ft
- 4 - 8 Ohm
- Amplifier Module, Acrylic shell, Screws, Power cable, Screwdriver, Knob, Heat sink
Ubuy Assurance
Experience worry-free shopping with 100% original products, PCI DSS-compliant payment security, ISO 27001-certified data protection, the fastest cross-border delivery, free returns *, and secure packaging on every order.