We supply many kinds of echo horn ,koizer horn with koizer color box ,if you are intersted with them ,please contact with nicole THIS ECHO HORN IS DESIGNED ACCORDING TO KOIZER HORN , A CONTROLL BOX , TWO HORNS , 8 KINDS OF SOUNDS , VERY SOUND , DIAMTER OF HORN MOUTH : 113MM CONTROLL BOX SIZE : 87*35 MM , WITH CHANNEL FLASH WORD ON IT packing term : foam + COLOR BOXMicro Computer Horn Cover ...