Mousr is the only toy designed from the wheels up to play the way your cat wants. Mousr's includes a variety of tail attachments so user can customize the toy to match just about any cat's play style. With a switch of his tail, it'll be like your cat is meeting Mousr for the very first time! Compatible iOS or Android device required. Choose to operate Mousr directly from a smartphone or tablet with the free Mousr app, or set it for automatic play. Mousr can entice, sense, and react to a cat all on his own. Mousr can even play different games to match different play styles. Use the free companion app to configure the games to find one your cat loves!