Is the light and the time suppose to stay on constantly?

Hello Cade, There are 2 links below which should help to answer your question. The 1st will guide you to a user manual. The 2nd is a link to Boss Support https://bossaudio.com/product/mgr300b/ https://support.bossaudio.com/hc/en-us

Can i just hook it up to my amp, instead of using the head unit outputs?

Hello Tanner, Yes, you can use the pre-amp outputs to connect to your amplifier. Please see the link below for more information. https://bossaudio.com/product/mgr300b/

Besides the volume knob, what’s the difference between this and the boss 350b? There are no reviews anywhere

Hi Dedmon9 The 350b has an RDS Tuner, where the 300b doesn't. ("RDS" stands for "Radio Data System" and it allows FM broadcasters to send far more than just an analog audio signal out over the air waves. Using a 57 kHz "subcarrier," stations can transmit digital RDS data for reception by RDS-equipped FM tuners).

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

BOSS Audio Systems MGR300B Bluetooth Marine Stereo Gauge Receiver, No DVD

BOSS Audio Systems MGR300B Bluetooth Marine Stereo Gauge Receiver, No DVD

Product ID: 727834405

Details

Audio Encoding
Windows Media
Audio Output Mode
Stereo
Brand
BOSS Audio
Colour
Black
Compatible Devices
Android iPhone
Connectivity Technology
Auxiliary USB

📱Bluetooth wireless streaming

🔊240W powerful output

🌧️IPX5 water & dust resistant

$627.59

Duties & taxes included

In stock

Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to USA.

Secure transaction

Description

🌊 Command your marine soundtrack with power and style!

BUILT TO BRAVE THE ELEMENTS - IPX5-rated weatherproof design ensures your music stays uninterrupted, rain or shine, on every marine adventure.
SEAMLESS BLUETOOTH STREAMING - Wirelessly connect your smartphone or MP3 player to enjoy Spotify, Pandora, and more without missing a beat.
TRUSTED DURABILITY WARRANTY - Lightweight yet robust with a 3-year platinum warranty—engineered for professionals who demand reliability.
VERSATILE CONNECTIVITY OPTIONS - USB port for charging and audio, plus auxiliary input and front pre-amp outputs for custom speaker setups.
NIGHT READY ILLUMINATED CONTROLS - Backlit panel lets you effortlessly navigate your tunes even after sunset—because the party never stops.

The BOSS Audio Systems MGR300B is a compact, 240-watt marine stereo receiver featuring Bluetooth wireless streaming, IPX5 water and dust resistance, and illuminated controls for easy nighttime use. Designed for seamless integration with smartphones and MP3 players, it supports USB charging and auxiliary inputs, backed by a 3-year warranty for dependable performance on the water.

Specifications

ASIN	B09TRZZJSH
Audio Encoding	Windows Media Audio (WMA)
Audio Output Mode	Stereo
Audio Output Type	Speakers
Box Contents	Mounting kit, rubber cover, instruction manual
Brand	BOSS Audio Systems
Brand Name	BOSS Audio Systems
Colour	Black
Compatible Devices	Android, Smartphone, iPhone
Connectivity Technology	Auxiliary , Bluetooth, USB
Connector Type	RCA
Control Method	App
Controller Type	Android
Customer Reviews	4.5 out of 5 stars 178 Reviews
Format	WMA
Item Dimensions D x W x H	9.5D x 11.5W x 11.5H Centimeters
Item Type Name	BOSS Audio Systems MGR300B Marine Boat Stereo Sound System Head Unit - No CD Player, Bluetooth Audio, IPX5 Rated, USB, MP3, AM/FM Radio Receiver
Item Weight Unit of Measure	1.34 Pounds
Manufacturer	BOSS Audio Systems
Manufacturer Part Number	MGR300B
Model Number	MGR300B
Network Connectivity Technology	Auxiliary, Bluetooth, USB
Number of Channels	2
Number of Items	1
Other Special Features of the Product	Built-In Bluetooth
Output Power	240 Watts
Output Wattage	240 Watts
Software Update Supported to Date	unknown
Special Feature	Built-In Bluetooth
Supported Internet Services	Pandora, Spotify
Surround Sound Channel Configuration	4.0
UPC	791489132534
Unit Count	1.0 Count
Wattage	240 Watts
Wireless Technology	Bluetooth

Reviews

L**S

Excelente

Muy buen producto; cumple con lo que promete.

28.11.2024

J**R

Awesome head unit for a great price

Amazing radio to install for a great price. The sound quality is amazing, great display, and it is super easy to connect to. Has held up for over 3 years now

24.08.2026

I**Z

Plug and play

Plug and play work perfect

22.07.2026

A**E

Cumple sus funciones y llega rápido 🫡

Es práctico para instalar y no necesitamos gran cosa, cumple sus funciones al cien 😃

13.06.2024

F**S

Decepción

No funciona el radio, trae un corto de fábrica. Y se calienta. Necesito devolverlo para que me lo cambien y no veo opción aquí

15.06.2024

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ayesha M.

The product exactly matches the description. Very satisfied with my purchase.

5 days ago

Khalid Z.

Great experience from order to delivery. Highly recommended!

1 week ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.

$627.59

Duties & taxes included

In stock

Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to USA.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Anjali K.

The product quality is outstanding. Exactly what I needed for my work.

1 month ago

Ravi S.

I loved the variety of products available. Will definitely shop again.

2 months ago

View all Trustpilot reviews