We have to monitor now for 10 days in use. Our cat weighs 5.5kg and carries the device without a murmur by the collar. It is highly recommended to secure the tracker also because the clip can be solved. Scotch tape wrapped 2-3 times holding definitely. In addition makes sense to use the power saving mode, ensures in unsrem case for 4-5 days duration. Who wants to have Live Tracking must exit sleep mode then stop first. Why it is not set as default, however, is puzzling. Position data is transmitted unregemäßig, sometimes every 5 minutes, but it can also pass one hour. As these times determined for position transmission is unknown. Toll would be if, for example, a vibration sensor is installed which transmits no position data with sleeping cat. Maybe someone can tell what about it here .... Something weird are the outliers of the transmitted alleged position with an accuracy of 940 meters. Comes about every 1-2 days prior times. Here it would be better this data nacher in the 24 hour display or not to leave it to the user by means of a filter, for example, Overview