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Bluetooth Audio Amplifier Board, Zk Tb21 2.1Ch 50W X 2 +100W Subwoofer Power Amp With Treble And Bass Control, Bluetooth5.0 And

  • $34.54
  • Regular price $49.34

Vendor: Arrarown

Type: Receivers & Amplifiers

Sku: WBEEAB08G1NZF3Y

Availability: In Stock


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Processing time : 1-3 days
US Orders Ships in : 3-5 days
International Orders Ships in : 8-12 days
15-days return on defective items

Our Shipping Promise

At Electroeshop, we understand that your pet supplies are important. That's why we take extra care with every package we send. All orders are shipped in double-boxes with full insurance for additional protection, ensuring your items arrive safely.

Processing & Shipping Timeline

  • Processing Time: Orders are processed within 1-3 business days
  • Domestic Delivery: Typically 3-5 business days

Please note that delivery times are estimates and may vary based on your location, weather conditions, or other unforeseen circumstances.

Shipping Destinations

Electroeshop currently only ships to the United States.

Shipping Costs

We are pleased to offer free standard shipping on all orders within the United States.

Discreet Packaging

We respect your privacy. All Electroeshop packages are shipped with complete discreet packaging. The product name, description, sender's name, and any information that hints about the contents are encrypted. Your package will arrive without any indication of what's inside, ensuring your purchase remains confidential.

Signature Requirements

Important Note: All orders valued above $250 will require a signature upon delivery for your protection.

Order Tracking

Once your order ships, you'll receive a tracking number via email so you can monitor your shipment's progress every step of the way.

Lost or Delayed Shipments

If your package is lost or significantly delayed, please contact our support team immediately, and we will assist you in resolving the issue.

Additional Security Measures

For your protection, we may contact you for additional order verification of the payment method on certain orders.

Questions or Concerns?

For details on returns and refunds, please refer to our Return Policy page.
For any questions about shipping or delivery, please contact our customer service team at support@Electroeshop.com.


Bluetooth Audio Amplifier Board, Zk Tb21 2.1Ch 50W X 2 +100W Subwoofer Power Amp With Treble And Bass Control, Bluetooth5.0 And

$34.54

Frequently Asked Questions

  • Q: What are the dimensions of the Bluetooth audio amplifier board? A: The dimensions are four point seventy-two inches by three point ninety-four inches by zero point seven inches. This compact size makes it easy to install in various setups.
  • Q: What is the output power of the amplifier? A: The amplifier provides fifty watts per channel for the left and right channels and a maximum of one hundred watts for the subwoofer. This ensures powerful sound performance for your audio needs.
  • Q: What kind of audio inputs does this amplifier support? A: This amplifier supports both Bluetooth and AUX audio inputs. You can connect devices wirelessly via Bluetooth or use a wired connection through the AUX input.
  • Q: How do I install this Bluetooth audio amplifier? A: Installation is straightforward as the illustration of each interface is printed on the protective plate. This design allows for easy setup without needing extensive instructions.
  • Q: Can I adjust treble and bass on this amplifier? A: Yes, you can directly adjust treble and bass using the independent buttons on the amplifier. This feature allows you to customize your sound experience easily.
  • Q: Is this amplifier suitable for outdoor use? A: Yes, this amplifier is designed for both indoor and outdoor use. It's perfect for various occasions like family gatherings, parties, bars, and concerts.
  • Q: What protective features does this amplifier have? A: The amplifier is equipped with over-voltage, under-voltage, over-heat, and short-circuit protection. These features enhance safety and reliability during use.
  • Q: How do I ensure optimal performance from the amplifier? A: Ensure that the power supply voltage is sufficient, ideally between twelve to twenty-four volts with above five amps. This will help achieve higher relative power and sound quality.
  • Q: What is the signal-to-noise ratio of the amplifier? A: The amplifier boasts a signal-to-noise ratio greater than ninety decibels. This indicates high-quality sound with minimal background noise.
  • Q: What is the maximum distance for Bluetooth connectivity? A: The Bluetooth version is five point zero, allowing for a maximum connection distance of up to ten meters if unobstructed. This provides flexibility in positioning your audio source.
  • Q: Can I use this amplifier without instructions? A: Yes, the amplifier is designed for easy use, with labeled interfaces on the protective plate making it user-friendly even without instructions.
  • Q: What is included in the package with the amplifier? A: The package includes one audio amplifier module, a screwdriver, two shells, five buttons, and various screws and nuts for assembly. Everything you need for setup is provided.
  • Q: Does this amplifier have a warranty? A: Yes, the amplifier typically comes with a manufacturer's warranty. Please check with the seller for specific warranty details and duration.
  • Q: What should I do if the amplifier does not turn on? A: If the amplifier does not turn on, first check the power supply for adequate voltage. Ensure all connections are secure, and verify that the input source is correctly selected.
  • Q: Is there a risk of sound distortion with this amplifier? A: No, the amplifier is designed to have just a little sound distortion, ensuring a clear audio output. It provides a high-quality sound experience for users.

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