Modern technology with a retro cooler design Two low-profile 5-watt speakers with passive radiators Bluetooth 5.0 wireless technology New multi-unit linking feature allows two units to be connected simultaneously IP56-rated water & dust-resistant design Up to 10 hours of audio playtime on a single charge Rechargeable internal lithium-ion battery Tent-top design and side push buttons are easy to use and carry Molded-in handle for one-handed carrying 14 Qt capacity / holds 26 cans