... battery,1000mAh/dc 5V mini speaker size:300*45*45mm 3.5mm audio line 1.5"speaker,2.5W*2 the ... device:A,memory card,such as SD/MMC card,U-Disk,etcB,mobile device,such as PC,mp3/mp4 player,Mobile phone,etc2,it ... can be 7 hours.4,good bass stereo effect for your comfortable enjoyment.5,low price:we have the ... information:size of product:300*45*45mmpackge:gift box for each product,size of gift box:323.2*54. ...