USB retractable 1.Size: 32*21*15mm 2.Dual reel lenth:10-20cm of each 3.Connector:USB, ethernet 4.Certificate:UL,CE Brife ... barrier,badge reel,and other retractable products.3. Occation:computer,iphone,ipod,phone and so on.Name: Mini USB retractable reel cable for mobile computerSpecification:1 ... shape,not shrink.2.Size: 32*21*15mm3.Color:black4.Wire:2,3,4 copper wires,one pull lenth is 10 ...