JBL Signature Sound 5 Hours of Playtime under optimum audio settings Wireless Bluetooth Streaming IPX7 Waterproof design, Battery Type Lithium-ion polymer (3.7V, 730mAh), Charging time (hrs) 2.5 Built-in Noise-cancelling Speakerphone Audio cable input What’s in the box: 1 x JBL GO 2, 1 x Micro USB cable for charging, 1 x Safety Sheet, 1 x Quick Start Guide, 1 x Warranty Card