Design: Elegant look ultra thin shape, gentle curve with fabric finish. Bluetooth: 4.1 Bluetooth Chip, lossless transmission sources. Automatic identified devices which have been paired, intellegent fast connection, supporting voice calls, matching AUX cable input and more convinient. Sound Quality: 3.5W X 2 and powerful surging sound. Long Lasting Battery: Built in 1800mAh lithium battery - Up to 6hours. What's in the box Remax Bluetooth Speaker USB Charging cable