Knowledge Base

You can request service for your Megaphone through our website on our repair page

To learn about your Blue Ocean Megaphone's warranty please click here

Please try refreshing the cache on the webpage. To do this, press Ctrl-F5. If that does not work, then please try opening the order in an incognito window (Shift-Ctrl-n) . For MAC users on Safari, you can use [CMD] + [ALT] + [E]

You can download the manual here:

Blue Ocean Megaphone Instruction Manuals

Blue Ocean Megaphone User Manual   (Size: 4.1 MB)

A guide to help you utilize all the features of your new Megaphone

Tips for Avoiding the Spread of Viruses & Bacteria with Shared NK Equipment

We have been asked what is the best way to help prevent potential cross-contamination when using NK Equipment. While NK is not claiming these techniques will be 100% effective against a virus spreading, here are a couple of ideas that may help.

1) When sharing microphones, purchasing a set of finger cots to put on the end of the microphone creates a barrier between the mic and the user's mouth. The finger cot should not affect the overall sound amplification and can be removed after use and then a new one reapplied for the next user. They can be found online or even at your local Walgreens.

2) Use a 10% Bleach and 90% water solution to sanitize all the equipment. This solution is very effective against killing all types of viruses and should not harm the plastics or rubber used in our equipment.

You will first need to create an account if you do not already have one. After you create an account, sign in. Click on your account name at the top of the page and select My Account. On the left of the screen, you will see Product Registration, select this option. Enter your purchase date, serial number and product name into the fields and then select Save.