When you press the registered button on the handset, the tag on your cat’s collar will make a little beep which helps the cat understand it is time to come home. We recommend to initially train your cat whilst at home and so that he/she can associate the beep with food or a treat. It is also worth noting that all 4 buttons will make a slightly different beeping noise on the tag. Training your cat may take a little time but we’ve had many customers tell us it works allowing them to just press the button on the handset from the comfort of an armchair and waiting for their cat to arrive on demand.