inputs.text: scosche fmt4 far great - note itehem description says fmt4r not really sure difference fmt4 review scosche fmt4this third fm transmitter far best one ever first one generic one purchased clone belkin tunecast ii worked pretty good real belkin tunecast ii never happy much static batteries not last long auto onoff feature annoying convenientthis scosche fmt4 smaller belkin seehems powerful less susceptible interferenceprossmalllittle no staticmanual onoff switchconsnone fari not unit long enough speak battery life lasted least week hour use per day still goingi also curious see approach city san francisco live outlying rural area typically belkin would get worse worse approached city typically became unusable make trip city new transmitter update review