Quantity 1 piece(s) Material Engineering plstic Color White + blue Type Motorcyle snail eight sound horn Function Red line connects positive pole; Black line connects negative pole; The electronic system control the horn to transform the sound; Presses the button continually for three times the transformation of the sound is finished; Repeats the above step to transform the sound continually; One sound will be kept until you press the button Power Supply DC 12V Working Current 5A Packing List 2 x Horns (20cm) 1 x Controller (20cm) 1 x Fuse tube 2 x Fixed him 1 x Screw nut