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Cobra Bluebound 350 EU VHF Marine Radio turned on showing sample display

Cobra BlueBound 350 EU

Congratulations on your purchase of the Cobra BlueBound 350 EU VHF Marine Radio! Excellent choice. To get acquainted with it, download the manual, then visit the links below for more helpful information.

Questions & Support


Cobra Bluebound 350 EU VHF Marine Radio and its accessory components

What's Included

VHF Radio

Power Accessories

  • 12VDC to USB-C Cable
  • AC to USB-C Cable
  • Charging Dock
  • Rechargeable Lithium-Ion Battery
    (Installed in radio)

Additional Accessories

  • Belt Clip
  • Wrist Strap

Download Manual

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If you have questions about the radio, consult your manual at the link above, or check our Questions & Support guides.

Initial Setup and Transmitting

This guide will give you step-by-step instructions for getting up and running with your new radio, including going over some of its special features. See the video above for a full run-down of all the features or see below for help with transmitting your first message.

  1. Make sure that your radio is fully charged before you begin.
    • You can charge the included battery (Lithium-ion) using the provided USB-C cable.
    • Insert the USB-C cable in the bottom of the dock. If you examine the dock with the Y-Shaped aperture, you should find the USB-C port is perpendicular to the bottom of the dock as in the images below:

      Images of the bottom of the charging dock before and after inserting the USB-C cable

  2. Press and hold the SCAN & STAR keys while powering on the radio.

  3. The radio will power on, and the middle channel numbers will be flashing, with the bottom row dot  
    matrix display showing “SELECT COUNTRY”.

  4. Press the UP/DOWN arrow keys to select a number that corresponds to your country.

    1. Other
    2. UK
    3. Denmark
    4. Finland/Sweden/Norway
    5. Netherlands
    6. Belgium
    7. Italy
    8. Iceland
    9. Default

      For additional countries not listed in the table above, please contact your local Cobra dealer or distributor for additional programming support.
  5. Press the Enter/Setup key to save selection and return to VHF standby mode. If no action is taken by

    the user after 10 seconds, the radio will automatically return to VHF standby mode as default.

  6. Once you have returned to VHF standby mode ("STANDBY" will show at the bottom of the display), choose your channel using the up/down arrow key on the front keypad button cluster.
    • In all channel mappings, channel 16 is the distress and safety channel and should be monitored at all times but only transmitted on if you have a genuine emergency.
    • Your BlueBound 350E VHF is equipped with a Tri-Watch feature, enabling you to toggle between Channel 16, and two custom channels of your choice. See the manual for further details.
  7. Toggle broadcast power between High (6 Watts), Medium (3 Watts), or Low (1 Watt) by pressing the H-M-L key repeatedly.
    • Vary your wattage based on how far away the receiving radio will be. Start with the lowest wattage and move your way up to the next higher wattage until you can be heard.
    • Higher wattage transmission will deplete your battery faster. Consult your manual for estimated battery life for 90/5/5 standby/transmit/receive usage.
  8. Use the volume knob on top to change the reception volume of the radio.
  9. To transmit your first message:
    • Hold the radio around 2 inches (5cm) from your mouth.
    • Press and hold the Push-to-Talk (PTT) Button (the largest button) on the left side of the radio.
    • Keep the button held while you talk at a normal volume.
    • Release the PTT button when you are done speaking.