$10.10 Original price was: $10.10.$4.75Current price is: $4.75.
ZK-MT21 2x50W+100W 2.1 Channel Subwoofer Digital Power Amplifier Board AUX 12V 24V Audio Stereo Bluetooth-compatible 5.0 Bass Amp for Home Theater Speaker
Feature:
The Bluetooth-compatible audio power amplifier module has 2.1 channels and the maximum output power is 2X50W+100W.
It has two audio input modes, AUX and Bluetooth-compatible, and a two-in-one power amplifier board. Bluetooth-compatible5.0, higher transmission efficiency, longer transmission distance
It has short-circuit protection, over-current, over-heating, and anti-reverse protection to prevent total failure. When an overload occurs, the device reports the fault condition to the processor to protect itself from damage
It adopts copper DC connectors and barrier terminals. It can withstand high current without heating or damaging wires.
Classic appearance multi-function main knob. The main knob adopts a rotary encoder that is only used in high-end power amplifiers, which realizes 360-degree stepless tuning and a smooth one-key start and stop. The operation is simple and convenient by long pressing the switch.
With bass, treble, subwoofer frequency and volume control, you can easily adjust the volume and enjoy the music tone you want. It is widely used in shopping malls, home theaters, speakers, etc.
Specification:
Product name: 2.1 channel Bluetooth-compatible audio power amplifier module
Product model: ZK-MT21
Bluetooth-compatible version: 5.0 (unobstructed, 15 meters)
Input sensitivity: 500mV
Input method: AUX+ Bluetooth-compatible
Number of channels: 2.1 channels
Power amplifier chip: Domestic power amplifier chip
Adapter power supply: above DC12-24V/5A (24V battery pack is not allowed)
Adapted speakers: 20-100W, 4-8Q
Output power: left and right channels <50W; subwoofer <100W
Protection mechanism: Anti-reverse connection, overheating, overcurrent, short circuit protection
Product size: 93mm*90mm*22mm
Product weight: about 130g
Notice:
The product can be connected with an external antenna, but does not include an antenna and an antenna base, please purchase it separately.
Tip: Only when the audio input is enough and the power supply voltage/current is enough, there will be enough output power!!!
The higher the power supply voltage, the greater the output power, and the smaller the speaker impedance, the greater the output power!!! Please make sure that the power of the adapted power supply is greater than the actual working power of the amplifier!!!
Note:
Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you!
Please allow 1-2cm measuring deviation due to manual measurement.
1 X Power Amplifier Board
1 X Accessory Pack
China, Israel, United States, SPAIN, Australia, France
Transparent, Orange, Khaki, Sky Blue, Silver, Black, Gold, Red, Blue, Gray
Yes
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Shipping Policy
Cancellation/Return/Exchange Policy
CoinGear offers refunds for invoices/transactions processed through CoinGear Escrow service. By default, all invoices/transactions are processed through CoinGear Escrow service.
QuickClaim Refunds: CoinGear Escrow ensures quick and straightforward refunds for orders processed through Account Balance payment method. No discussions or disputes are needed—refunds are credited to the buyer’s account within 24 hours upon request.
CoinGear Standard Refunds: The buyer is expected to discuss the issue with the seller and reach a mutual agreement. If the seller agrees to a full or partial refund, the approved amount will be credited to the buyer’s account balance. In cases where no resolution is reached, CoinGear’s decision will be considered final.
QuickClaim Refunds: CoinGear Escrow ensures quick and straightforward refunds for orders processed through Cryptocurrency payment method. No discussions or disputes are needed—refunds are credited to the buyer’s account within 24 hours upon request.
QuickClaim Refunds: CoinGear Escrow ensures quick and straightforward refunds for orders processed through Credit/Debit Cards payment method. No discussions or disputes are needed—refunds are credited to the buyer’s account within 24 hours upon request.
QuickClaim Refunds: CoinGear does not offer Escrow protection for orders placed using the Cash on Delivery (COD) payment method. Buyers must resolve any issues directly with the seller.
CoinGear Standard Refunds: CoinGear does not offer Escrow protection for orders placed using the Cash on Delivery (COD) payment method. Buyers must resolve any issues directly with the seller.
If the seller does not specify a refund request validity period, the item will be considered non-refundable. Buyers may proceed with the purchase at their own risk.
Free items are not eligible for refunds.
Refundable Items – Shipping Refund Eligibility: Shipping costs will be refunded if the issue with the order is due to seller’s fault, such as a defective product, an incorrect item, or non-delivery… Etc.
Non-Refundable Items – Shipping Refund Eligibility: For Non-refundable items with associated shipping costs, a 14-day return and refund window applies by default, regardless of the seller’s refund policy. This ensures protection for buyers in cases where shipping charges may effectively cover product costs or when the quality of the delivered item is unsatisfactory. Shipping costs will be refunded if the issue with the order is due to seller’s fault, such as a defective product, an incorrect item, or non-delivery… Etc.
Free items – Shipping Refund Eligibility : For Free items with associated shipping costs, a 14-day return and refund window applies by default, regardless of the seller’s refund policy. This ensures protection for buyers in cases where shipping charges may effectively cover product costs or when the quality of the delivered item is unsatisfactory.Shipping costs will be refunded if the issue with the order is due to seller’s fault, such as a defective product, an incorrect item, or non-delivery… Etc.
Return and refund window period for for physical items:Refund requests for physical items are accepted up to "X" days (As decided by the seller) of receipt of shipment. For free or non-refundable items with associated shipping costs, a 14-day return and refund window applies by default, regardless of the seller’s refund policy. This ensures protection for buyers in cases where shipping charges may effectively cover product costs or when the quality of the delivered item is unsatisfactory. Return and refund window period for for downloadable items:The order placement date will be considered as the receipt of shipment date for downloadable items.
Return and refund window period for for services:The service delivered date will be considered as the receipt of shipment date for services.
*Receipt of shipment date = The date item/service received to the buyer.
Buyer is protected. The seller offers days of refund requets period for this purchase ZK-MT21 2x20W+100W 2.1 Channel Subwoofer Digital Power Amplifier Board AUX 12V 24V Audio Stereo Bluetooth 5.0 Bass Amp for Home from the date of receipt of shipment. If the buyer is unsatisfied with the purchase for any reason, they may request a refund within this period.
Since Crypto coins buyers spend purchases are holding in stablecoin till the end of refund validity period, all refunds will be volatility free. Exchange fees may apply.
When the refund request is granted by the CoinGear Escrow department, a processing fee of 0.75 USD + Exchange fees will be charged on refund and the remainder amount will be credited to the buyer's account balance. Buyer can withdraw account balance to own personal wallet.
The present Refund policy is part of the COINGEAR TERMS AND CONDITIONS.
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