SOUNDBOKS 4, Black: Loudest Portable Bluetooth 5.0 Performance Speaker | Designed in Denmark, 40 Hrs of Battery and Thunderous Bass Power The Party, 126 dB, Wireless, Swappable Battery, Pairable

POWERFUL 126 dB VOLUME WITH INDUSTRY LEADING, NEXT GENERATION SOUND QUALITY: Experience BIG concert-level sound with 3 x 72W RMS Infineon MERUS Audio Eximo class D multistep amplifiers, driving 2 x 10” 96 dB Ferrite-magnet woofers, and a 1 x 1″ 104 dB Polyethylene Naphthalate compression driver tweeter. Our generation 4 adaptive digital signal processor (DSP) with Bass Enhancer leads the industry in clarity and unlocks all day energy efficiency; the SB4 lasts 20% longer at maximum volume.
RUGGED DURABILITY + WEATHER RESISTANCE + ON-THE-GO PORTABILITY: Packable, tossable, swingable + totatable sound system — with a durable, time-tested design (refined for more than 10 years, across more than 250,000 speakers) that’s dustproof, splashproof, waterproof, and built for the outdoors.
40 HR SWAPPABLE BATTERY: Easily swappable 12.8 V, 7.8 Ah Lithium Iron Phosphate (LiFePO4) battery with ~40 hours of playtime, (100Wh capacity) and a 3.5-hour recharge. Compatible with ALL SOUNDBOKS products, tolerant of high and low temperatures, and complete with short circuit and overheat protection