The JBL Boombox 4 is a powerful, IP68 waterproof/dustproof portable speaker with Bluetooth 5.4, featuring 210W RMS power (2x 65W woofers, 2x 40W tweeters) on AC, 200W on battery, and a 37Hz-20kHz frequency response, offering up to 34 hours playtime (with AI Sound Boost) and Auracast, plus power bank functionality via USB-C. It’s built with recycled materials and has a replaceable battery, delivering robust sound with powerful bass and clear highs for indoor/outdoor use, with JBL Portable app support for EQ settings.
Key Specifications:
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- Audio:
- Power: 210W RMS (AC), 200W RMS (Battery)
- Drivers: 2x 5″ Woofers, 2x 0.75″ Tweeters, 3 Passive Radiators
- Frequency Response: 37Hz – 20kHz
- Sound: JBL Pro Sound, AI Sound Boost, Bass Boost modes
- Audio:
- Connectivity:
- Bluetooth: v5.4
- Profiles: A2DP 1.4, AVRCP 1.6
- Ports: USB-C (Power In/Out, Audio In)
- Pairing: Auracast support
- Battery:
- Life: Up to 28 hrs (standard), up to 34 hrs (with Playtime Boost)
- Type: Rechargeable Li-ion (Replaceable)
- Charging: AC-in, USB-C
- Durability:
- Rating: IP68 (Waterproof & Dustproof)
- Materials: Recycled Plastic/Fabric
- Dimensions & Weight:
- Dimensions (W x H x D): Approx. 20″ x 10.4″ x 8.3″ (51 x 26.2 x 21 cm)
- Weight: Approx. 13 lbs (5.9 kg)
- App: JBL Portable App for EQ and features
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