Sony ULT Field 1
A compact portable Bluetooth speaker in Sony's ULT Power Sound series (model SRS-ULT10). It is rated IP67 waterproof and dustproof, is described by Sony as shockproof, has a ULT button that boosts the bass, a detachable multi-way strap, and a battery rated for up to 12 hours. Two units can be paired for stereo.
Text from OyList

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