| Specification | Detail |
| Model | JBL Boombox 4 |
| Speaker Type | Portable Bluetooth Party Speaker |
| Transducers / Drivers | 2 × 5-inch (123 mm) Woofers + 2 × 0.75-inch (20 mm) Tweeters + 3 Passive Radiators |
| Output Power (AC Mode) | 210W RMS (2 × 65W RMS Woofer + 2 × 40W RMS Tweeter) |
| Output Power (Battery Mode) | 200W RMS (2 × 60W RMS Woofer + 2 × 40W RMS Tweeter) |
| Frequency Response | 37 Hz – 20 kHz |
| Signal-to-Noise Ratio (SNR) | > 80 dB |
| Audio Technologies | AI Sound Boost, Dual Bass Boost Modes (Deep & Punchy Bass), JBL Pro Sound |
| Bluetooth Version | Bluetooth 5.4 |
| Bluetooth Profiles | A2DP 1.4, AVRCP 1.6 |
| Multi-Speaker Connection | Auracast™ Multi-Speaker Pairing & Stereo Boost |
| Audio Inputs & Connectivity | Bluetooth 5.4, USB-C Lossless Audio Playback, AC-In |
| Ingress Protection Rating | IP68 (Waterproof & Dustproof) |
| Battery Type | Rechargeable & Replaceable Li-ion Battery (99.02 Wh / 21.6V / 4584 mAh) |
| Playtime | Up to 28 hours (Up to 34 hours with Playtime Boost) |
| Battery Charging Time | Approx. 3 hours |
| Power Bank Functionality | Yes (USB-C Fast Power Output up to 30W PPS) |
| Dimensions (W × H × D) | 506.4 × 262.9 × 212.9 mm (20 × 10.3 × 8.4 inches) |
| Weight | 5.89 kg (13 lbs) |
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