Bose S1 Pro+ Portable Bluetooth® Speaker System
https://www.bose.co.uk/en_gb/support/articles/HC2474/productCodes/S1PROP-SPEAKERWIRELESS/article.html
WEBTo check for and download system software updates, use your computer to visit the Bose updater website at: btu.Bose.com. NOTE: To update the system, you need to connect the system to your computer using a USB-C cable (not provided). Lightening cables will not work. Power on the system. Remove wireless transmitters from the system.
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