HAVIT HV-SK578BT Wireless Outdoor Portable Speaker can produce 6W incredible stereo sound. Its V4.2 version Bluetooth is capable to cover approximately 10 M of distance. This highly portable front linen fabric gadget can be charged within 2 hours that will ensure 3-4 hours of play & talk time backup. With an enormous 1200 mAh capacity of the battery, it weighs only 465g for higher portability.