16 LED globe umbrella light with Bluetooth speaker.(Works on any Bluetooth device) It Easily clips by self-adjusting onto any center post umbrella pole (33mm to 50mm) and also clips onto the retractable LED light bracket in the centre hub of all Shelta Cantilever Umbrellas. Lasts 6 to 10 hours of usage with 80 hrs on standby time, with a charge time of 2-4 hours. AC adapter charger included.