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JBL / SPECIFICATION-BASED RESEARCH
A portable Bluetooth speaker with an IP68 rating and Auracast support. JBL lists 14 hours of playback, or up to 16 hours with its separate Playtime Boost mode.
Consider it if portability and compatible multi-speaker connections matter to you.
Check exactly which speakers and pairing modes are compatible. The extended battery figure uses a different mode; it is not the standard playback claim.
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THE USEFUL DETAILS
These describe the product; they are not independent performance-test results.
For a small speaker with a carrying loop
A portable Bluetooth speaker with a nylon utility loop and an IP67 rating. Bose lists up to 12 hours of battery life under its test conditions.
For a portable setup with a bass control
A portable Bluetooth speaker with a multi-way strap and an ULT button for bass emphasis. Sony lists an IP67 rating and up to 12 hours of playback.