PurrSong LavvieTAG ID Pendant Charger & Scanner Set for Cats

Collects cat s daily activities: walking, running, grooming/kneading, zoomies, resting, and calorie consumption.World s lightest and smallest collar, only weighing 0.01lb and smaller than a quarter coin.1 time charge lasts 30 days. No need to charge frequently, hence convenient for users.Comes in 2 strap sizes S-M (6.3-8.6 ) & M-L (7.5-11 ). A cotton strap made of thin and light fabric for good airflow. Safety buckle equipped to easily unlock the strap in case of emergency.Special feature! LavvieTAG helps you find your cat s biological age based on the collected activity data.1 LavvieTAG Charger is included in this product selection. 1 LavvieTAG Charger can charge upto 3 LavvieTAG pendants.LavvieScanner is needed to receive data anywhere outside your house. After LavvieTAG accumulates more than 1 hour of activity data, LavvieScanner transfers that collected data to PurrSong app when a cat with LavvieTAG approaches near it.