JBL Boombox 4 portable bluetooth speaker (Black/ Camouflage)

Key Features and Specs

• Sound: Unbeatable JBL Pro Sound with AI Sound Boost for optimized clarity and depth. It features dual 5-inch (123mm) woofers, dual 0.75-inch (20mm) tweeters, and three passive radiators (two circle + one racetrack) for deep, punchy bass and clean highs. Power output: up to 2x65W RMS woofers + 2x40W tweeters (AC mode); slightly lower on battery. Frequency response: 37Hz–20kHz. Includes two Bass Boost modes (Deep for thumping lows, Punchy for energetic tracks) and app-based EQ via the JBL Portable app.
• Battery Life: Up to 34 hours of playtime (real-world often around 28–30 hours at moderate volumes), a big upgrade from the Boombox 3's 24 hours. Features a replaceable/swappable battery (sold separately for extended use) and USB-C charging (~3 hours full charge) with powerbank function to charge other devices.
• Durability: Top-tier IP68 waterproof (fully submersible) and dustproof rating—built to handle rain, pools, sand, or drops. It's also lighter than the Boombox 3 (around 13 lbs / ~5.9kg vs. 15 lbs), with a sturdy carry handle for easier portability despite the size.
• Connectivity: Bluetooth 5.4 for stable range, Auracast support for multi-speaker broadcasting/pairing (beyond basic PartyBoost), USB-C for lossless wired audio playback, and app integration.