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.

• Unbeatable JBL Pro Sound with AI Sound Boost
  • Massive sound with deep and punchy bass from two bigger woofers, two tweeters, and three passive radiators.
  • AI Sound Boost analyzes music in real time and adjusts output for more power with less distortion.
• Up to 34 hours of playtime
  • Up to 28 hours on a single charge.
  • JBL Playtime Boost adds up to 6 extra hours.
• Waterproof and dustproof
  • IP68 waterproof and dustproof protection.
  • Handles weather, splashes, and rough handling.
• Multi-speaker connection by Auracast™
  • Stereo pair two Boombox 4 speakers.
  • Connect multiple Auracast™-enabled JBL speakers for a wider soundstage.
• Bigger and louder, but lighter
  • Redesigned to be lighter while delivering bigger sound.
  • Easy to carry wherever the party goes.
• Recycled plastic and fabric, plus FSC certified paper packaging
  • Made with post-consumer recycled plastic and recycled fabric.
  • Packaged in FSC-certified paper printed with soy ink.
• Two Bass Boost settings to match our vibe
  • Classic JBL signature bass mode.
  • Deep Bass mode and Punchy Bass mode selectable via the Bass Boost button.
• Lossless audio playback
  • Supports lossless USB-C audio playback.
  • *Requires compatible lossless audio content from supported apps or services.
• Replaceable battery**
  • Rechargeable battery can be replaced in three simple steps.
  • **Replaceable battery sold separately

Specs

• Power Input: 100 - 240 Vac; 50/60 Hz
• Signal-to-Noise Ratio: > 80 Db
• Output power (W): (AC mode) - 2 x 65W RMS Woofer, 2 x 40W RMS Tweeter; (Battery mode) - 2 x 60W RMS Woofer, 2 x 40W RMS Tweeter
• Frequency Response: 37Hz - 20 kHz
• 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
• Dimensions (Width x Height x Depth) (cm): 51 x 26 x 21
• Dimensions (Width x Height x Depth) (in): 20 x 10 x 8
• Weight (kgs): 5.89
• Weight (lbs): 13
• Bluetooth frequency: 2.4 GHz - 2.4835 GHz
• Connection: AC-in, USB-C
• Connection Ports: AC-in, USB-C
• Bluetooth Profile: A2DP 1.4, AVRCP 1.6
• Bluetooth profiles: A2DP 1.4, AVRCP 1.6
• Bluetooth Transmitter Frequency Range (GHz): 2.4 - 2.4835
• Bluetooth Transmitter Modulation: GFSK, π/4 DQPSK, 8DPSK
• Bluetooth transmitted modulation: GFSK, π/4 DQPSK, 8DPSK
• Bluetooth Transmitter Power: ≤ 14dBm (EIRP)
• Bluetooth transmitter power: ≤ 14dBm (EIRP)
• Bluetooth version: 5.4
• Cabel Type: AC Power Cable
• Cable Length (ft): 6.6
• Cable Length (m): 2
• Battery Type: Rechargeable Li-ion Battery Pack 99.02Wh
• Battery Charge Time (hours): 3
• Maximum music playing time (hrs): 28
• Dustproof: Yes
• AC power cable (type varies by regions): Yes
• IP Code: IP68
• Powerbank: Yes
• Wireless: Yes
• Waterproof: Yes
• Supports Auracast: Yes
• Bluetooth: Yes
• AI Sound Boost: Yes