Bluetooth Speakers / JBL
JBL Boombox 4
210W, 34 hours and a swappable battery — the loudest thing here.
Overall score 8.1/10
Pros
- + Loudest and deepest-hitting speaker here by a clear margin
- + The battery pack is swappable, which is almost unheard of and hugely extends its useful life
- + Measured runtime exceeds 34 hours
- + IP68 and can run on mains while charging
Cons
- − 5.9kg — this is a two-hands, plan-ahead speaker
- − The 3.5mm aux input was removed compared with the Boombox 3
- − No microphone
- − Not intended for TV use
- − Expensive at list price
JBL Boombox 4 review: what the specs say
210W, 34 hours and a swappable battery — the loudest thing here. At $549.95, JBL's 2025 model sits at the premium end of the category — the bluetooth Speakers we compare run from $34.99 to $549.95. It scores 8.1/10 overall, calculated from published specifications across 8 categories rather than from a subjective impression.
Its strongest showing is Loudness at 9.8/10 — maximum usable volume before it strains. The weakest is Portability at 3.5/10, which is the trade-off to weigh before buying: if that is the specification you care about most, one of the alternatives below will serve you better.
Worth knowing before you buy: 5.9kg — this is a two-hands, plan-ahead speaker; and the 3.5mm aux input was removed compared with the Boombox 3. Every specification on this page comes from JBL's own documentation or a verified retail listing — where a figure is not published, the table says so rather than estimating it.
Specifications and price last verified . Report an error
Full Specifications
| Battery Life | 28 hrs |
| Water & Dust Rating | IP68 — dust and water |
| Floats | Not confirmed |
| Power Output | 210W on mains (2x 65W woofers plus 2x 40W tweeters), 200W on battery W |
| Weight | 5890 g |
| Bluetooth | 5.4 (SBC, AAC, LC3) |
| Drivers | 2x 5-inch woofers plus 2x 0.75-inch tweeters and three passive radiators |
| Stereo & Multi-Speaker Pairing | Auracast — stereo pair two Boombox 4s or link many Auracast JBL speakers |
| Speakerphone | No |
| App EQ | Yes |
| Charges Your Phone | Yes |
| Connectivity | Bluetooth 5.4, USB-C in and out |
| Material | Rubberised body with heavy fabric grille and metal handle |
| Warranty | 12 months |
Compare JBL Boombox 4 With
Cheaper Alternative
Sonos Move 2 — $499.00