Hi Mike

You might want to try this company: https://www.specialneedsatsea.com/reserve-equipment/

They didn’t list Yokohama as a port on their form, but say “If you do not see your port city listed, we can likely still fulfill your rental needs, please call our reservation specialists at 800 513 4515.” So, you may want to give them a try…

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That is such a great idea! Thank you for sharing! Blocking out sounds can really help with hearing the audio.

For those with bluetooth wireless headphones, perhaps they could connect to the audioguide device with an adapter like this https://amzn.to/48BdU2E ? Would it work?