Feather Hider Pet Droid w/ Natural Feather Sound Module and Motion SensorWhistle with warbling sound: satisfies your cats instinct to hunting It is equipped with one responsive motion sensor that controls the direction of the disappearing feather part and sound chip. Combined together this two elements make the fun even more exciting. Non slip rubber feet to stand Suitable for wall mounting (feet and screws) Ideal for playing in the house for secondary mirror and hunting games