Car Amplifier Bluetooth Amplifier 4 Channel Class D 800W Amp Stereo on Boats UTV ATV Golf Carts and Cars

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Product Details
Marine Bluetooth Amplifier 4 Channel Class D 800W Amp Stereo on Boats UTV ATV Golf Carts and Cars
  • RMS Output @ 4-Ohms: 50 watts x 4
  • Length: 7.8″ (20 cm). Width: 4″ (10 cm). Height: 2″ (5 cm).
  • USB audio input / charging: 5V/1A. Frequency Response: 20Hz – 20kHz.
  • Conformal-coated PCB and stainless-steel hardware for weather resistance

Product description

The VX505 Marine Bluetooth Amplifier delivers the weather-resistant, superior sound quality, while allowing users to enjoy their personal music without a head unit through wireless Bluetooth.
It’s perfect for bringing entertainment to motorcycles, hot rods, UTVs, boats, gift carts, farm tractors, snowmobiles, ATVs or even riding lawnmowers. The VX505 is small-footprint and can be easily hidden, it pairs with any Bluetooth-compatible media device to provide 200 watts of power (50w x 4 at 4Ohms) to any speaker system in most any vehicle.
It includes a wired remote that controls device volume and other basic functions, which can be positioned within the driver’s reach, mounted onto surface or flush style.
It boasts powered speaker outputs for adding a pair of speakers, resulting in a complete audio system.
Further, it also provides line-level outputs and can be used with higher powered amplifiers in a larger system.
Although it serve as the source unit, VX505 is designed to draw little current and be more efficient.
RMS Power Rating:
Compact 4-channel amplifier for car, motorcycle, and boat
50 watts RMS x 4 at 4 or 2 ohms
Wireless Bluetooth connection via wired remote controller
LED power and protect indicators
Blue-backlight remote is easily mounted
2 or Mono channel operation
Preamp RCA outputs to external amps
3 -way protection circuitry
Dimension: 3.9″ W x 8″ L x 2″ H          Car Amplifier

Car Audio


Velex Tech Ltd. is engaged in the R&D, manufacturing of Marine Stereo and DAB+ receiver.

Our R&D integrates graphic & mechanical design, tooling, PCB layout, programming according to customer’s requirement, for all the marine products, we’ve done extreme water resistant test, thermal test to ensure realiable quality for long standing use in harsh marine environment.
Carefully selected components, advanced SMT machine with X-ray test equipment, AQL 1.0/2.5 quality control level, 4 hours severe aging test, all these production procedure guarantee the robust and stable performance.
For EU market, we also supply marine stereo with DAB+ receiver, with SMB connector and active DAB+ antenna, customer can enjoy digital broadcasting on board.
Velex is now developing long distance bluetooth audio streaming device for special market, the blueotooth reception can go up to 60 meters. Also we are cooperating with customers for media link marine products.
We welcome OEM/ODM customers from all over the world, no matter what obstables may be, our joint effort and hard working will lead to the bright future.
About Shipment
Our Freight Cost include the expense of shipping, handling and high quality packaging.
We are not responsible for undeliverable address. We reserve the right to charge the shipping fee again for returned items due to wrong address.
Items are normally shipped out within 3 days after payment has been verified (Sat. & Sun. excluded.)
If you need to change your address or information, please contact us within 1-2 days after the order submitted.
Import duties, taxes or fees are not included in the fee you pay to us.
The item will be sent via EMS/AliExpress Standard Shipping/DHL/UPS/China Post Air Mail . Please provide detailed address and contact number, they are very important to the courier.
Notice: Orders with freeshipping policy will be shipped through the best available shipping method by our logistics expert.
Have any questions, please feel free to let us know. We will respond to you within 24 hours.
(Excluding weekends and holidays)
Shipping & Payment


We are proud to offer international shipping services that currently operate in over 200 countries and islands world wide. Nothing means more to us than bringing our customers great value and service. We will continue to grow to meet the needs of all our customers, delivering a service beyond all expectation anywhere in the world.

How do you ship packages?

Packages from our warehouse in China will be shipped by ePacket or EMS depending on the weight and size of the product. Packages shipped from our US warehouse are shipped through USPS.

Do you ship worldwide?

Yes. We provide free shipping to over 200 countries around the world. However, there are some locations we are unable to ship to. If you happen to be located in one of those countries we will contact you.

What about customs?

We are not responsible for any custom fees once the items have shipped. By purchasing our products, you consent that one or more packages may be shipped to you and may get custom fees when they arrive to your country.

How long does shipping take?

Shipping time varies by location. These are our estimates:
Location *Estimated Shipping Time
United States 10-20 Business days
Canada, Europe 10-20 Business days
Australia, New Zealand 10-30 Business days
Central & South America 15-30 Business days
Asia 10-20 Business days
Africa 15-45 Business days
*This doesn’t include our 2-5 day processing time.

Do you provide tracking information?

Yes, you will receive an email once your order ships that contains your tracking information. If you haven’t received tracking info within 5 days, please contact us.

My tracking says “no information available at the moment”.

For some shipping companies, it takes 2-5 business days for the tracking information to update on the system. If your order was placed more than 5 business days ago and there is still no information on your tracking number, please contact us.

Will my items be sent in one package?

For logistical reasons, items in the same purchase will sometimes be sent in separate packages, even if you've specified combined shipping.

If you have any other questions, please contact us and we will do our best to help you out.


Order cancellation

All orders can be cancelled until they are shipped. If your order has been paid and you need to make a change or cancel an order, you must contact us within 12 hours. Once the packaging and shipping process has started, it can no longer be cancelled.


Your satisfaction is our #1 priority. Therefore, you can request a refund or reshipment for ordered products if:

  • If you did not receive the product within the guaranteed time( 45 days not including 2-5 day processing) you can request a refund or a reshipment.
  • If you received the wrong item you can request a refund or a reshipment.
  • If you do not want the product you’ve received you may request a refund but you must return the item at your expense and the item must be unused.

We do not issue the refund if:

  • Your order did not arrive due to factors within your control (i.e. providing the wrong shipping address)
  • Your order did not arrive due to exceptional circumstances outside the control of (i.e. not cleared by customs, delayed by a natural disaster).
  • Other exceptional circumstances outside the control of

*You can submit refund requests within 15 days after the guaranteed period for delivery (45 days) has expired. You can do it by sending a message on Contact Us page

If you are approved for a refund, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within 14 days.


If for any reason you would like to exchange your product, perhaps for a different size in clothing. You must contact us first and we will guide you through the steps.

Please do not send your purchase back to us unless we authorise you to do so.

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