SKU: 78593108004

Boss Audio MGR300B Marine Stereo w/AM/FM/BT/USB [MGR300B]

Sale price$136.79 Regular price$151.99
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  • CAN

Ships within 48 hours · Estimated delivery Jul 18 - Jul 23

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Description

Boss Audio MGR300B Marine Stereo w/AM/FM/BT/USB [MGR300B]MGR300B Marine Stereo with AM FM BT USB The MGR300B stereo packs a lot of features into a compact round, gauge style design that fits into a standard gauge opening. Crank up some AM FM radio, or plug a compatible device into the rear USB Aux input. The large backlit LED display lets you see what you're hearing with just a glance, while the IPX6 rated water resistant face panel and big, easy to use controls are made to resist sun, salt, and moisture.

MGR300B Marine Stereo with AM/FM/BT/USB

The MGR300B stereo packs a lot of features into a compact round, gauge style design that fits into a standard gauge opening.  Crank up some AM/FM radio, or plug a compatible device into the rear USB/Aux input.  

The large backlit LED display lets you see what you're hearing with just a glance, while the IPX6-rated water-resistant face panel and big, easy-to-use controls are made to resist sun, salt, and moisture.

Features:

  • The marine digital media receiver 
  • White LCD Display with Blue Back-lit Illumination
  • Weather Band
  • AM/FM with 18 presets
  • Water-proof, conformal coated circuit boards

Technical Specifications:

  • 240 Watts peak power
  • Mounting hole - 3" Round
  • Chassis type - Gauge style
  • Presets - 12 FM/6 AM

In the Box:

  • MGR300B Stereo head unit
  • Silicone cover
  • Mounting hardware
  • Owner's manual 

*Sold as an Individual 

Specifications:

  • Auxiliary Input: Yes
  • Bluetooth: Yes
  • Color: Black
  • Cover Included: Yes
  • NMEA 2000: No
  • Power - Output (Watts): 240
  • RCA Input: Yes
  • RCA Output: Yes
  • SiriusXM Ready: No
  • Wired Remote Capable: No
  • Wireless Remote Capable: No
  • Box Dimensions: 6"H x 6"W x 7"L WT: 1.95 lbs
  • UPC: 791489132534

Owner's Manual (pdf)
Brochure (pdf)
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 78593108004

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4.4 ★★★★★
Based on 16 reviews
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Verified Purchase
lynn martinez
Port Orchard, US
★★★★★ 5
Blk mule
Size: 8.5, Color: Black
They really nice. Good looking and feel comfortable. But I believe they run small. I’m an exchange them for a size up.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 2, 2026
C
Verified Purchase
Catherine
Omaha, US
★★★★★ 5
LOVE THEM ❤️
Size: 9, Color: Hazelnut
LOVE THESE ❤️ COMFORTABLE.. WELL MADE.. BEAUTIFUL 😍
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 17, 2026
D
Verified Purchase
d & d
Lake Worth, US
★★★★★ 5
Genuine leather upper and well made
Size: 10, Color: Sunlight
These shoes are well made and I love the way they look. They look great with jeans or dresses. I usually wear a 9 1/2 or 10 depending on the brand. These are a size 10 and fit. Hopefully after a breaking in period the opening at the toes will loosen up. Also, when walking they make a slap slap sound. Again, hoping after they break in that won't be the case. I got a great deal and poof a couple of days later there was a slightly better deal. I wasn't sure I'd like the color but it's actually really nice. The upper is genuine leather and they are well made.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 6, 2025
M
Verified Purchase
Mytwocents
Grantham, US
★★★★★ 5
Beautiful shoe
Size: 7, Color: Smoke Grey
This shoe is fairly narrow, which works fine for my narrow feet. Comfortable. Light. Nice color will match with lots of colors. Fairly comfortable but the skinny part by the toe I see how this would give anyone with a medium side foot blisters. It’s fine on me.
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Reviewed in the United States on August 23, 2025
D
Verified Purchase
Deena
Battle Creek, US
★★★★★ 4
Runs small
Size: 8.5, Color: Sandstorm
This shoe is super cute and comfy. I usually wear an 8 or an 8½. I ordered the 8½, but it was too small, so I had to send it back. I reordered a 9, and it fit perfectly.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 20, 2025

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