Cobra MR HH350 FLT

High Powered VHF Marine 2-Way Radio Walkie-Talkie w/ NOAA Receiver and Tri-Watch Mode - Grey


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Why You Need This:

  • When you don't want to risk dropping your cell phone in the water
  • If you own a boat / yacht
  • To contact the Coast Guard with the push of a button
  • To receive quick information regarding weather conditions when you're on the water
  • If you like to fish
  • You don't really get much cell phone coverage out in the ocean
  • To get information from other boaters
  • To talk to lock or bridge tenders
  • Make radiotelephone calls anywhere in the world through a marine operator
  • If you and your friend have separate vessels
    • Use if you have 2 separate Seadoos or jet skis
    • Or if you and your friend have your own separate fishing boats
  • Use for the snow too
    • If you like to ski or snowboard
    • Use for snowmobiling
    • Or even mountain climbing like Mount Everest or K-2!
Cobra MR-HH350-FLT Features:
  • High Powered Floating Waterproof VHF Marine 2-Way Radio
  • Orange coloring and floating design makes it easy to find if dropped into the water
  • Selectable 1W / 3W / 6W transmission power for near, or long range communications
  • Ultra-Compact Ergonomic Design
  • BURP feature vibrates water out of the speaker grill and improves performance
  • Large Illuminated LCD Screen for better visibility
  • Water proof (JIS7/IPX7); submersible for up to 30 minutes in 1 meter deep water
  • Selectable USA, International and Canadian channel maps
  • High capacity battery provides hours of use
  • One touch NOAA weather and emergency conditions alerts
    • NOAA (National Oceanic and Atmospheric Administration) warns of hazardous weather such as flooding, tornadoes or hurricanes
    • Dedicated button allows for one touch operation
    • WX Weather Alert Mode will automatically receive signals and warnings from designated NOAA broadcast stations
    • Ideal for rapid storm warnings to allow time to get to safety
  • One Touch Channel 16/9 Mode for quick access to emergency channels
  • Tri-Watch Mode allows you to scan a total of 3 channels of most importance to you
    • Channel 16 is pre-programmed to always be one of the scanned channels
  • Instant Channel 16/9 button for rapid emergency transmissions
  • Unlimited memory locations to remember your most used channels
  • Adjustable squelch control will filter weak signals - This will block noisy channels with heavy interference
  • Scan mode allows you to easily search for conversations in progress
  • Speaker output to connect an external speaker or hook up a microphone
  • Adjustable key tone either off or on
  • Power saving circuitry provides a longer battery life
  • Dimensions: 4.75"L x 2.66"W x 2.09"D
  • Authorized Internet Dealer
  • 3 Year Manufacturer's Warranty
Cobra MR-HH350-FLT Specifications
  • Channels: All U.S, Canadian, International and NOAA Weather Channels
  • Waterproof: Yes
  • Channel Spacing: 25kHz
  • Modulation: VHF: 5kHz Max
  • Input Voltage: 7.4 VDC
  • Battery Life:
    • 8 hours @ 6 watts / 16 hours @ 1 watt
  • Current Drain
    • Standby: 45 mA
    • Receive: 200mA
    • Transmit: 1.8 A @ High power / 700 mA @ Low power
    • Operating Temp.: -4°F (-20°C)to 122°F (50°C)
Receiver Specifications:
  • Frequency Range: 156.050 - 163.275 MHz
  • Receiver Type: Double Conversion Super-Heterodyne
  • Sensitivity:
    • 12 dB Sinad/-121 dBm
  • Adjacent Channel Selectivity: -60 dB
  • Intermodulation and Rejection: -70 dB
  • Spurious and Image Rejection: -60 dB
  • AF Output: 250 mW @ 8 Ohms
Transmitter Specifications:
  • Frequency Range: 156.025 - 157.425 MHz
  • RF Output Power: 1W / 3W / 6W
  • Spurious Emissions:
    • -60 dB @ High power
    • -55 dB @ Low Power
  • Frequency Stability: +/- 5ppm
  • FM Hum and Noise: 40 dB
Sold Individually

Radio Specifications

Radio Type
Determines the frequency ranges that the radio operates on. Different spectrum ranges are allotted for each type and each type has its own rules and regulations regarding transmissions.
Intended Radio Use

This is the intended use of the radio.

Car: This means that the radio is for use in a vehicle. These radios usually come with mounting and installation accessories for vehicles. Please verify with the product's description for more detailed information.

Marine: This means that the radio is intended for use on the boat or for marine applications. This means that he radio itself is typically treated for marine environments and includes marine accessories. Please see the product description for more information.

Portable: These radios are intended for use on the go and can be carried in your hand. Some portable radios can be used in other applications, such as on a boat or in a car.

Some radios are waterproof and can withstand being submerged in water to certain depths.
Power Output
Measurement of the power output of the radio using. This is determined by measuring the signal strength at the base of the antenna. Each type of radio has a limitation on how high the wattage can be without the need for an FCC license.
6 watts
Power Source
The power source is the method in which the unit receives power. Some units will be powered by batteries, while others will need to be plugged in to an AC or DC power source.
Battery Life
The average capacity of the battery when fully charged. This value is provided by the manufacturer and is an average, not a guarantee.
16 hours

Handheld Radio Specifications

This is the number of total channels that the radio is able to access and operate on.
Built-In NOAA Receiver
CB radios with this feature have the ability to access local NOAA radio stations for real-time weather reports and updates. CB radios equipped with multiple NOAA channels allow users to select the clearest channel to monitor weather conditions.
Number of Weather Channels
Radios with a built-in NOAA receiver can have multiple weather channels in order to find the clearest channel.
Illuminated / Backlit Display
Some models include a backlit radio display for convenient operation at night. This is an invaluable feature if a radio will be used extensively at night or in dark conditions.
AM/FM Tuner
Adjustable Output Power
Allows users to increase or decrease the transmit power of the CB radio. At a higher transmit power the signal will travel farther. In battery powered radios, users may want to lower the transmit power in order to increase battery life.
Squelch Control
Changes the sensitivity of your CB radio to adjust for whatever signal strength you may be receiving. Lower squelch levels will allow you to receive transmissions from a greater distance, but these transmissions will contain more background noise. Higher squelch levels reduce the background noise, but will eliminate some weaker transmissionsl. In effect, it keeps the receiver from constantly having to listen to static and only activates the speaker when a transmission is received.
Voice Activation
Signal Strength Meter
This feature displays the strength of the received or transmitted signal.
Selectable Call Tones
Channel Scanning
primarily for recreational purposes, allows you to automatically scan all available CB channels for activity, ensuring you'll know of anything happening on the airwaves.
Dual Watch
Allows you to monitor two channels at once.
Emergency Crank
External Speaker Output
Microphone Input

Specials with this Item

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Warranty and Return Policy

Parts Warranty Duration
3 years
Labor Warranty Duration
3 years
Warranty Provider

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
4 Star
3 Star
2 Star
1 Star

Average Attribution Rating



It really floats!

June 1, 2015

Used it a few times it really floats and is quite light.

45 of 49 found this helpful

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Columbus, Ohio

Great Hand Held Marine Radio

May 20, 2016

The Cobra MR HH350 radio is a quality product. It fits the hand and has a large, easy to read bright display with good contrast. It provides good range and clear, easy to understand reception with little or no static. It is also a good value from Sonic - cheaper than many other radios from other dealers. I've owned it for a month and have used it on several fishing trips. I haven't used it enough or dropped it enough times to comment on durability but it has a sturdy feel - I think it will hold up just fine.

0 of 0 found this helpful

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Norwalk, Ohio

Great buy.

May 2, 2016

Great buy. I was impressed with value. Have used it already and I'm very satisfied.

0 of 0 found this helpful

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Browse 2 questions and 6 answers
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Why did you choose this?
Sonic Electronix Store
Good product from good company
Mac M on Jan 24, 2015
Good price, small size, nice design.
Pavlo L on Jul 29, 2014
good reviews
Nathalie C on Aug 16, 2014
How many channels does this radio have all together?
A shopper on Dec 7, 2015
Best Answer: Goes up to 88 and also has all Alpha channels too. I love mine.
Reply · Report · Chris B on Dec 7, 2015
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Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: Cobra MR HH350 FLT

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Cobra MR HH350 FLT

High Powered VHF Marine 2-Way Radio Walkie-Talkie w/ NOAA Receiver and Tri-Watch Mode - Grey


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