PurrSong LavvieTAG with Straps 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.