The power-bank feature remains a key differentiator. Reviewers commonly note it can top up phones and small devices via USB-C, but it is not meant to charge laptops.
Reverse charging is called out as a useful extra for outdoor use, letting the speaker top up a phone in a pinch. Reviewers imply it is convenient but will reduce total playback time.
USB-C charge-out works as a practical emergency top-up for phones, but reviewers stress it draws from the speaker's battery and can shorten playtime. It is helpful, but not a dedicated power bank replacement.