Tzumi wireless earbuds
Earbuds Charging Time (Est): 1 hr
Charging Case time (Est): 1 hrs
via the manual https://manuals.plus/tzumi/7058w-probuds-bluetooth-5-0-manual#ixzz7bR9SZULV
They are probably busted try replacing the battery
SOURCE: How to change language from Japanese to English for Tzumi wireless earbud set.
You need to plug it in to your computer if its got a USB port then go to their online support and download the software in the software it will allow you to make the changes
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