portable mini speaker 1.various colors 2.round pin,widely used in mobile ... .high quality with low price 4.offer OEM portable mini speaker 1. appliable to mobile,computer, laptop2.without the wire, it ... .0 5V/2000mA4.single input:3.5mm diameter stereo pin5.speaker size:22 diameter6.Frequency response:110-16KHZProduct and packing pictures ...