mini speaker manual usb mini speaker with bluetooth

specifications Rated power:5W R.frequency:90Hz-20KHz Drive unit:1*33mm S/n ratio:≥80db Battery:built-in Decoding system Working voltage: DC5V Selling point: sport speaker Interface type: TF card Body Size 85*34*34mm N.W.(kgs) 17.50 Package size 100*45*55mm G.W.(kgs) 18.60 Q'ty/CTN 50pcs Carton Size 550*265*515mm