police motorcycle speaker. moto speaker, moto parts police motorcycle alarming speakerModel:MJB series Frequency range:300~5000Hz Distortion:≤5%Impendance:16Ω SPL:115db~120db(A)Weight:1.65kg Meas:145*120*55mm20W, 40W, 50W is for optionwith a controller switchpolice moto speaker, moto parts police motorcycle speaker. moto speaker, moto parts