Hmm? I've wanted a cheaper alternative to the 599-699$ ACR Terafix units. The newest one at 699$ does promise to get your signal to a satellite in 3 minutes with your location +/-9meters. With just one push of the button. The SPOT needs to be turned on, given time to find the GPS satellites before sending the distress signal..up to 20+ minutes. I'll have to go back and look at the cost of service.