material:aluminium+iron size:7.5*4.5*5cm. weight:193g color:black,blue,pink.green,sliver.golden. materialaluminium alloysize7.5*4.5*5cmweight193gcolorsilver,golden,black,blue,pink,MOQ100PCSpackinggift box.customer's color is accepted.logo is available on the cover surface.1.five bottons in arrays for choosing the model(TF/USB/Line in),the sound for lower or louder,next program,back program ...