Black wireless bluetooth speaker portable ultra-high power subwoofer mobile phone charging black Wireless Bluetooth Speaker Portable Sound Column Ultra high Power 80W Subwoofer For Mobile Phone Charging Boom Box Wireless bluetooth speaker portable sound column ultra-high power 80W subwoofer mobile phone charging boom box specification: Output power: 80W Size: 25711588mm Model: XDOBO X8 Plus Signal to noise ratio:> 75dB Playing time: 15 hours Charging time: about 5 hours