We bought PetTracer because 2 of our cats are too small for other makes of tracker but we're disappointed. For getting a general sense of where they hang out its ok. The battery life is ok. I've been putting off leaving a review because I don't want to be negative but it seems that it doesn't take much for there to be no available signal so there can be very long gaps in knowing where the cats are. The whole rigmarole of making the home station mobile is a massive hassle and doesn't always work in our very ordinary neighbourhood. So now one of my cats is missing and there's no signal, no recent update and we are frustrated and despondent. Small detail - the coloured tape for the collars doesn't stick on well and gets very worn quickly. What should have brought us peace of mind and kept our cat safe has done neither.