JBL Boombox 4 Portable Wireless Speaker
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AI Sound Boost
Two Bass Boost Settings
Lossless Audio Playback via USB-C
USB-C Reverse Wired Charging
Replaceable Battery (Sold Separately)
Multi-Speaker connection by Auracast: Stereo Pair two Boombox 4 speakers or connect multiple Auracast enabled JBL speakers
Output power (W): 2x65W RMS-subwoofer + 2x40W RMS-tweeter (AC mode)
2x60W RMS-subwoofer + 2x40W RMS-tweeter (Battery mode)
Dynamic frequency response range (Hz): 37 Hz - 20k Hz
Transducer: 2 x 5 inch / 2 x 123mm woofer, 2 x 0.75 inch / 2 x 20mm Tweeter, 2 pcs circle + 1 pc racetrack passive radiator
Bluetooth Version: 5.4
Water & Dust Resistance Rating: IP68
Maximum Music Playing Time: 28 Hours
Charging Time: 3 Hours
Phone Companion App: JBL Portable App
Two Bass Boost Settings
Lossless Audio Playback via USB-C
USB-C Reverse Wired Charging
Replaceable Battery (Sold Separately)
Multi-Speaker connection by Auracast: Stereo Pair two Boombox 4 speakers or connect multiple Auracast enabled JBL speakers
Output power (W): 2x65W RMS-subwoofer + 2x40W RMS-tweeter (AC mode)
2x60W RMS-subwoofer + 2x40W RMS-tweeter (Battery mode)
Dynamic frequency response range (Hz): 37 Hz - 20k Hz
Transducer: 2 x 5 inch / 2 x 123mm woofer, 2 x 0.75 inch / 2 x 20mm Tweeter, 2 pcs circle + 1 pc racetrack passive radiator
Bluetooth Version: 5.4
Water & Dust Resistance Rating: IP68
Maximum Music Playing Time: 28 Hours
Charging Time: 3 Hours
Phone Companion App: JBL Portable App
Condition
- New
Connection Type
- Bluetooth
- Wired
- Wireless
Warranty Issuer
- Manufacturer
JBL | Boombox 4 | Unbeatable sound all day long
We turn it up our way—anywhere. The all-new JBL Boombox 4 is bigger, bolder, and better than ever, with powerful JBL Pro Sound that stays loud and clear, with deep thumping bass. AI Sound Boost analyzes our music in real time and adjusts the sound to give us more power with less distortion, even when we turn it all the way up. It packs two bigger woofers, two tweeters and three passive radiators, so every track hits harder and sounds cleaner. When we want to fine-tune the vibe, we just switch between deep or vibrant punchy Bass Boost settings to match our mood. We gave the classic Boombox design a fresh upgrade—it’s larger but lighter, so we can take it wherever the party goes: the beach, the block, or the backyard. It’s IP68 waterproof and dustproof, so weather’s never a dealbreaker. And, with up to 34 hours of playtime (thanks, Playtime Boost), we’re set for the long haul. With the JBL Boombox 4, we carry the mood and the energy, everywhere we go.
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