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).

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BOSS Audio Systems MGR300B Marine Boat Stereo Gauge Receiver - Bluetooth, No CD DVD Player, AM/FM Radio, IPX5 Weatherproof, USB, MP3

Product ID: 442830234

Details

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

📱Bluetooth wireless streaming

🔊240W powerful output

🌧️IPX5 water & dust resistant

177882CFA

Duties & taxes included

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Description

🎶 Ride the waves with sound that’s as unstoppable as you are!

WEATHERPROOF IPX 5 RATING - Built to brave splashes and dust, so your soundtrack never stops no matter the conditions.
SEAMLESS BLUETOOTH CONNECTIVITY - Stream your favorite playlists from Spotify or Pandora without a single wire in sight.
NIGHT READY ILLUMINATED CONTROLS - Backlit panel ensures effortless navigation even under the stars.
VERSATILE USB AUXILIARY INPUTS - Charge devices and access vast music libraries on the go, keeping your vibe uninterrupted.
UNLEASH 240 WATTS OF MARINE GRADE SOUND - Crystal-clear audio that powers your boat parties and morning cruises alike.

The BOSS Audio Systems MGR300B is a compact, marine-grade stereo receiver delivering 240 watts of powerful sound with Bluetooth streaming, AM/FM radio, and USB/auxiliary inputs. Its IPX5 weatherproof design ensures durability against water and dust, while illuminated controls provide easy use day or night. Perfectly tailored for boaters seeking premium audio performance backed by a 3-year warranty.

Specifications

ASIN	B09TRZZJSH
Audio Encoding	Windows Media Audio (WMA)
Audio Output Mode	Stereo
Audio Output Type	Speakers
Best Sellers Rank	#11,019 in Electronics ( See Top 100 in Electronics ) #10 in Marine Stereo Receivers
Brand	BOSS Audio Systems
Built-In Media	Mounting kit, rubber cover, instruction manual
Color	Black
Compatible Devices	Android, Smartphone, iPhone
Connectivity Technology	Auxiliary, Bluetooth, USB
Connector Type	RCA
Controller Type	Android, iOS
Customer Reviews	4.5 4.5 out of 5 stars (173)
Format	WMA
Item Dimensions D x W x H	3.73"D x 4.53"W x 4.53"H
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	1.34 Pounds
Manufacturer	BOSS Audio Systems
Mfr Part Number	MGR300B
Model Number	MGR300B
Other Special Features of the Product	Built-In Bluetooth
Output Power	240 Watts
Output Wattage	240 Watts
Supported Internet Services	Pandora, Spotify
UPC	791489132534
Unit Count	1.0 Count
Warranty Description	BOSS Audio Systems provides a powerful 3-year platinum online dealer warranty so long as the purchase is made through Amazon.
Wattage	240 watts
Wireless Technology	AM/FM, Bluetooth

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

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