JBL

Boombox 4

Portable Waterproof Speaker
Last distilled Jun 25, 2026Built from 13 sources across public reviews and discussions.
ReleaseSeptember 2025
Avg. Price$499.95
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The JBL Boombox 4 is a powerful portable waterproof speaker with AI Sound Boost, dual woofers, tweeters, and three passive radiators, delivering immersive sound and up to 34 hours of playtime.

JBL Boombox 4
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Summary

Generated from the text of public reviews

Reviewers mostly praise JBL Boombox 4 for its powerful bass and loud output, making it a top choice for outdoor parties. The replaceable battery and IP68 waterproofing add practical value for beach or pool use. However, some report distortion at moderate volumes and a plastic handle that looks cheap, with a firmware update reportedly reducing bass.

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