Best for Backwards compatibility
Bose SoundLink Flex Portable Speaker, 2nd Gen
2.2 feature score
Highest scored product for this feature based on supporting review evidence.
Best Bose Portable Bluetooth Speakers for Backwards compatibility
Backwards compatibility Decision Dashboard
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Backwards compatibility was a clear weakness because reviewers repeatedly noted that Gen 2 stereo pairing does not work with the old Flex.
Pros: Bluetooth connection stability, Dust resistance rating
Cons: Wired input, Power bank function