---
product_id: 265454083
title: "MGR350B Marine Boat Stereo Gauge Receiver – Bluetooth Head Unit, No CD DVD Player, Built-in 4 Channel Amplifier, Weatherproof, USB, USB Charging"
brand: "boss audio systems"
price: "$362.23"
currency: USD
in_stock: true
category: "Boss Audio Systems"
url: https://www.desertcart.us/products/265454083-mgr350b-marine-boat-stereo-gauge-receiver-bluetooth-head-unit-no
store_origin: US
region: United States of America
---

# IPX6 Weatherproof Rating 240W 4-Channel Amplifier USB Charging + Aux Input MGR350B Marine Boat Stereo Gauge Receiver – Bluetooth Head Unit, No CD DVD Player, Built-in 4 Channel Amplifier, Weatherproof, USB, USB Charging

**Brand:** boss audio systems
**Price:** $362.23
**Availability:** ✅ In Stock

## Summary

> 🚤 Elevate your boat’s soundtrack with power, weatherproof tech, and wireless freedom!

## Quick Answers

- **What is this?** MGR350B Marine Boat Stereo Gauge Receiver – Bluetooth Head Unit, No CD DVD Player, Built-in 4 Channel Amplifier, Weatherproof, USB, USB Charging by boss audio systems
- **How much does it cost?** $362.23 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/265454083-mgr350b-marine-boat-stereo-gauge-receiver-bluetooth-head-unit-no)

## Best For

- boss audio systems enthusiasts

## Why This Product

- Trusted boss audio systems brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Weatherproof & Ready:** IPX6-rated with UV-coated front panel and conformal PC board protection—built to brave splashes and sun.
- • **Power Your Marine Vibes:** Built-in 240W 4-channel amp delivers immersive sound that commands attention on the water.
- • **Stay Charged & Connected:** USB port doubles as a fast charger and media input, keeping your devices powered and your music library vast.
- • **Seamless Bluetooth Streaming:** Wirelessly connect your smartphone or favorite apps like Spotify and Pandora for endless playlists.
- • **Pro-Grade Installation Warranty:** Backed by a 3-year platinum warranty when professionally installed via desertcart.com—confidence you can trust.

## Overview

The BOSS Audio Systems MGR350B is a compact, weatherproof marine stereo receiver featuring a powerful 240-watt 4-channel amplifier, Bluetooth streaming compatible with Spotify and Pandora, USB media input with charging capabilities, and an IPX6 splash-resistant design. Designed for professional installation, it comes with a 3-year platinum warranty, making it the ultimate audio upgrade for any boat.

## Description

BOSS Audio Systems MGR350B Marine Boat Stereo Gauge Receiver – Bluetooth, No CD DVD Player, Built-in 4 Channel Amplifier, Weatherproof, USB, USB Charging

## Features

- Bluetooth - Play and control music through your smartphone or MP3 player as well as apps like Spotify / Pandora, wirelessly
- Weatherproof - The MGR350B has been outfitted with the latest weatherproofing techniques such as front panel UV coating, PC board with conformal coating. It has an IPX 6 rating for protection against splashing water
- Inputs - The USB port gives you the option to have a vast library of audio files at your fingertips. The auxiliary input is compatible with audio output from smartphones and MP3 players. USB charging
- Outputs - Use the front & rear or subwoofer pre-amp outputs to hook up your speakers or subwoofer. Specs - Dimensions: 3.5” x 3.5” x 3.8”, Weight: 1.1 lbs., 60 watts x 4 channels
- BOSS Audio Systems provides a powerful 3-year platinum online dealer warranty so long as the purchase is made through desertcart.com. We strongly encourage professional installation of this product to ensure proper and safe functionality

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00VV6Y7O2 |
| Audio Encoding | Stereo |
| Audio Output Mode | Multichannel |
| Audio Output Type | Speakers |
| Best Sellers Rank | #55,122 in Electronics ( See Top 100 in Electronics ) #425 in Car Stereos |
| Brand | BOSS Audio Systems |
| Built-In Media | Mounting Hardware |
| Color | Black |
| Compatible Devices | Smartphone |
| Connectivity Technology | Bluetooth, USB |
| Connector Type | USB Type A |
| Control Method | App |
| Controller Type | Android |
| Customer Reviews | 4.4 4.4 out of 5 stars (2,350) |
| Format | WMA |
| Global Trade Identification Number | 00791489122979 |
| Item Dimensions D x W x H | 8.9D x 9.7W x 8.9H centimeters |
| Item Type Name | BOSS Audio Systems MGR350B |
| Item Weight | 699 g |
| Manufacturer | BOSS Audio Systems |
| Mfr Part Number | MGR350B |
| Model Number | MGR350B |
| Number of Channels | 4 |
| Other Special Features of the Product | Bluetooth audio streaming, fast charging |
| Output Power | 240 Watts |
| Output Wattage | 240 Watts |
| Supported Internet Services | Pandora, Spotify |
| Surround Sound Channel Configuration | 5.1 |
| UPC | 791489122979 |
| Unit Count | 1 Count |
| Video Encoding | H.264, H.265/HEVC, MPEG-4 |
| Wattage | 240 watts |
| Wireless Technology | Bluetooth |

## Product Details

- **Brand:** BOSS Audio Systems
- **Compatible devices:** Smartphone
- **Connectivity technology:** Bluetooth, USB
- **Controller type:** Android
- **Special features:** Bluetooth audio streaming, fast charging

## Images

![MGR350B Marine Boat Stereo Gauge Receiver – Bluetooth Head Unit, No CD DVD Player, Built-in 4 Channel Amplifier, Weatherproof, USB, USB Charging - Image 1](https://m.media-amazon.com/images/I/618TNGqwQjL.jpg)

## Available Options

This product comes in different **Style** options.

## Questions & Answers

**Q: What is the RMS rating per channel?**
A: Hello,
The MGR350B outputs a total of 30 Watts RMS per channel.
Thank you,
Boss Audio Support Team

**Q: I see it's a 3 year warranty on the stereo?? I got one almost a year ago and the screen blacked out after 6 mounts what and who do I get a hold of to**
A: You should check your order and either the seller or BOSS would be my guess.

**Q: How long are the USB and aux input cords?**
A: 12 inches

**Q: Why is the one without speakers more expensive? We have speakers.**
A: No idea.  I ordered the one with speakers (only a few dollars difference), but only used the head unit.  Saving the speakers in case things change later and I want to install them.

## Frequently Bought Together

- BOSS Audio Systems MGR350B Marine Boat Stereo Gauge Receiver – Bluetooth Head Unit, No CD DVD Player, Built-in 4 Channel Amplifier, Weatherproof, USB, USB Charging
- BOSS Audio Systems MRANT10 Weatherproof Marine Dipole Hideaway Antenna,Black
- BOSS Audio Systems MR6B 6.5 inch Marine Stereo Boat Speakers - 180 Watts (pair), 2 Way, Full Range, Tweeters, Coaxial, Weatherproof, Sold in Pairs

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.us/products/265454083-mgr350b-marine-boat-stereo-gauge-receiver-bluetooth-head-unit-no](https://www.desertcart.us/products/265454083-mgr350b-marine-boat-stereo-gauge-receiver-bluetooth-head-unit-no)

---

*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-07-13*