JBL Boombox 4

JBL Boombox 4 Portable Bluetooth Speaker Audio & Sound JBL Pro Sound with AI Sound Boost for clearer, louder music with less distortion Two Bass Boost modes: Deep Bass and Punchy Bass Lossless audio playback via USB-C when connected to a compatible device Battery & Power Rechargeable 99 Wh battery Up to 28 hours of playtime, with up to 34 hours using Playtime Boost About 3 hours charging time Durability & Design IP68 waterproof and dustproof Connectivity Bluetooth 5.4 for stable wireless connection USB-C port for charging and wired digital audio playback Physical & Technical Specs Dimensions: 506.4 × 262.9 × 212.9 mm Weight: 5.89 kg Output power: • On AC: 2 × 65 W (woofers) + 2 × 40 W (tweeters) Frequency response: 37 Hz – 20 kHz Signal-to-noise ratio: > 80 dB WARRANTY – 1 YEAR