Powerful 5W speaker with surprisingly clear and full range sound. With built in sub woofer for optimal bass performance. Made out of high quality stainless steel for a great look and feel. With 650 mAh battery that allows up to 5 hours playing of your favorite music. Operating distance up to 10 metres. BT 5. 0 For smooth connection. Including PVC free TPE micro usb cable for re charging.