HARDSTONE

[ Acoustic couplers; ] Alarm monitoring systems; Automatic indicators of low pressure in vehicle tires; Computer peripheral devices; Computer software to maintain and operate computer system; Computers; DVD players; Global positioning system (GPS); Horns for loudspeakers; Navigation apparatus for vehicles; Personal security alarms that connect to a wireless communications network; Portable media players; Radar apparatus; Radios for vehicles; Satellite navigational system, namely, a global positioning system (GPS); Sound alarms; [ Speed indicators; ] Television apparatus for projection purposes; Video recorders