Bold JBL Original Pro Sound, Built-in 7500mAh Powerbank: Rechargeable Li-ion battery that supports 20 hours of playtime and offers the ability to charge devices via USB-Charge Out, IP67 waterproof and dustproof, Wireless bluetooth v5.1 streaming, Packaged in paper-based, eco packaging, Racetrack-shaped driver, separate tweeter and dual passive bass radiators.