1.mini usb portable speaker 2,support micro sd card slot 3, ... clock, calendar 4, material:Aluminum alloy Newest Patent Moudel professional mini usb portable speaker Description:1, Support micro sd card (TF card ... . 800mAH 17, Play time: 4-9 hours Accessories: 1*USB cable 1*Audio line1*user manual1*gift box 1* Belt ... 23.5KG Gross weight:24.5KG Newest Patent Moudel professional mini usb portable speaker