JBL Partybox 520 bluetooth party speaker

Key Features and Specs

• Sound: Electrifying JBL Pro Sound with AI Sound Boost for optimized, thumping bass and clear highs even at high volumes. It delivers 400W RMS output (max), featuring 2 x 7.5-inch (208mm) woofers and 2 x 1-inch (25mm) dome tweeters, plus a bass-reflex design. Frequency response: 40Hz–20kHz. Includes customizable light-synced effects, app EQ via the JBL PartyBox app, and modes for deeper bass or punchier playback.
• Battery Life: Up to 15 hours of playtime (real-world often 12–14 hours at moderate volumes), with fast charging (10 minutes for ~2 hours play) and a replaceable battery option for non-stop parties. It also acts as a power bank for other devices.
• Durability: IPX4 splashproof rating (handles rain or spills), rugged build with wide sturdy wheels and a telescopic handle for easy rolling (weighs about 25.5kg / 56 lbs—portable but not backpack-friendly).
• Connectivity: Bluetooth 5.4 (stable range, LE Audio support), Auracast for multi-speaker linking/broadcasting, USB-C for audio input/charging, AUX, and two XLR combo inputs (for mics/guitars/instruments with gain controls—great for karaoke or live sets).