---
product_id: 48066755
title: "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"
brand: "boss audio systems"
price: "¥73801"
currency: JPY
in_stock: true
reviews_count: 9
category: "Boss Audio Systems"
url: https://www.desertcart.jp/products/48066755-boss-audio-systems-mgr350b-marine-boat-stereo-gauge-receiver-bluetooth
store_origin: JP
region: Japan
---

# 240W powerful output USB fast charging IPX6 weatherproof rating 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

**Brand:** boss audio systems
**Price:** ¥73801
**Availability:** ✅ In Stock

## Summary

> 🚤 Elevate your boat’s vibe with splash-proof, wireless power!

## Quick Answers

- **What is this?** 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 by boss audio systems
- **How much does it cost?** ¥73801 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/48066755-boss-audio-systems-mgr350b-marine-boat-stereo-gauge-receiver-bluetooth)

## 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

- • **Smart USB Charging:** Keep your devices powered up while you cruise
- • **Versatile Media Playback:** Stream via Bluetooth, USB, or tune into AM/FM radio effortlessly
- • **Built to Brave the Elements:** IPX6-rated weatherproofing keeps your soundtrack splash-proof
- • **Powerful 4-Channel Amplifier:** Crystal-clear, immersive sound that commands attention on the water
- • **Seamless Bluetooth Streaming:** Wirelessly control Spotify & Pandora for endless marine vibes

## Overview

The BOSS Audio Systems MGR350B is a marine-grade Bluetooth stereo receiver featuring a robust 240W 4-channel amplifier, IPX6 weatherproof protection, and versatile media inputs including USB with fast charging. Designed for seamless wireless streaming of Spotify and Pandora, it delivers premium sound and durability tailored for the marine lifestyle.

## Description

BOSS Audio Systems MGR350B Marine Boot Gauge Stereo - Digital Multimedia MP3 Player, Bluetooth Main Unit without CD Player, USB, AM/FM Radio Receiver, Weatherproof

Review: Great radio - This radio dropped straight into a redundant speedo hole looks and feels quality 👌
Review: super - vše ok

## Features

- Bluetooth Audio Streaming (Play and control music and apps like Spotify / Pandora wirelessly)
- 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
- Media Playback - Bluetooth, play music via the USB port or tune into the AM/FM radio stations for up to date music/news/sports and more. The MGR350B does not have a CD or DVD mechanism
- 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

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00VV6Y7O2 |
| Audio Encoding | Stereo |
| Audio Output Mode | Multichannel |
| Audio Output Type | Speakers |
| Best Sellers Rank | 107,222 in Electronics & Photo ( See Top 100 in Electronics & Photo ) 428 in Marine Electronics 20,338 in Car & Vehicle Electronics |
| Box Contents | Metal Bracket, Hex Mounting Bolts, M4 Secure Nuts |
| Brand | BOSS Audio Systems |
| Brand Name | BOSS Audio Systems |
| Colour | Black |
| Compatible Devices | Personal Computer, Smartphone |
| Compatible devices | Personal Computer, Smartphone |
| Connectivity technology | Auxiliary , Bluetooth, USB |
| Connector Type | USB Type A |
| Connector type | USB Type A |
| Control Method | App |
| Controller Type | iOS |
| Controller type | iOS |
| Customer Reviews | 4.4 out of 5 stars 2,371 Reviews |
| Format | MP3 Audio |
| Global Trade Identification Number | 00791489122979 |
| Item Dimensions D x W x H | 9.8D x 9W x 9H centimetres |
| Item Weight | 699 g |
| Manufacturer | BOSS Audio Systems |
| Manufacturer Part Number | MGR350B |
| Model Number | MGR350B |
| Network Connectivity Technology | Auxiliary, Bluetooth, USB |
| Number of Channels | 4 |
| Other Special Features of the Product | Bluetooth audio streaming, fast charging |
| Output Power | 240 Watts |
| Output Wattage | 240 Watts |
| Special feature | Bluetooth audio streaming, fast charging |
| Supported Internet Services | Pandora, Spotify |
| Surround Sound Channel Configuration | 5.1 |
| UPC | 791489122979 |
| Unit Count | 1.0 count |
| Video Encoding Format | H.264, H.265/HEVC, MPEG-4 |
| Wattage | 240 watts |
| Wireless Technology Type | Bluetooth |

## Product Details

- **Audio encoding:** Stereo
- **Audio output mode:** Multichannel
- **Brand:** BOSS Audio Systems
- **Compatible devices:** Personal Computer, Smartphone
- **Connectivity technology:** Auxiliary, Bluetooth, USB
- **Connector type:** USB Type A
- **Controller type:** iOS
- **Special feature:** Bluetooth audio streaming, fast charging
- **Surround-sound channel configuration:** 5.1
- **Video encoding:** H.264, H.265/HEVC, MPEG-4

## Images

![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 - Image 1](https://m.media-amazon.com/images/I/618TNGqwQjL.jpg)
![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 - Image 2](https://m.media-amazon.com/images/I/715OJWcdX4L.jpg)
![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 - Image 3](https://m.media-amazon.com/images/I/710da2BjL+L.jpg)
![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 - Image 4](https://m.media-amazon.com/images/I/717WdoM0-sL.jpg)
![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 - Image 5](https://m.media-amazon.com/images/I/61qqDBS9qmL.jpg)

## 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.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great radio
*by P***. on 15 April 2023*

This radio dropped straight into a redundant speedo hole looks and feels quality 👌

### ⭐⭐⭐⭐⭐ super
*by A***R on 23 May 2021*

vše ok

### ⭐ dont work
*by R***L on 23 July 2021*

dont work

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**Shop now:** [https://www.desertcart.jp/products/48066755-boss-audio-systems-mgr350b-marine-boat-stereo-gauge-receiver-bluetooth](https://www.desertcart.jp/products/48066755-boss-audio-systems-mgr350b-marine-boat-stereo-gauge-receiver-bluetooth)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-07-31*