The xtr-540:battery operatedinternal battery charger72 point digital compassblue backlit text displaypatented pop mode detectionexclusive low profile periscopesbattery voltage gaugetotal band protection - selectable360° maxx coverage 3 city modes/highway modetwo (2) filter modes provides extra filteringhigh gain lenstone alertsstay alert7 dim/dark modesquiet/auto quiet modesalert prioritysetting saverselectable auto shut offsafety warning system - swspatented vg-2 cloaking technologyincluded accessories: - power cord - windshield mount - (3)aa ni-mh batteries