Intelligent Sensor, Dynamic Fun Built-in intelligent sensor chip, can automatically sense the cat near and start the dynamic mode, caterpillar toys through irregular movement, rotation or swing to attract the cat's attention, stimulate its hunting nature, increase the interactive fun. Equipped with simulation sound effects, from the visual and auditory double stimulation of the cat's interest in playing, so that the cat will never stop playing. Safe Material, Bite and Play Resistant Made of soft, environmentally friendly, non-toxic silicone or plush material, which is comfortable and safe to touch, avoiding injuries to cats when chewing. Sturdy structure, resistant to falling and biting, suitable for cats to play for a long time, prolonging the service life. Automatic timer, save your effort Support timer shutdown function, play for a period of time automatically stop, to avoid excessive excitement or toy power waste, while protecting the cat rest time. Low power consumption design, long life, convenient charging. Multi-functional design to meet various needs Some models may be combined with catnip, light-emitting elements or replacement heads to further attract cats and increase the sense of play. Lightweight and easy to carry, suitable for multiple scenarios at home, can also be used as a relief device for cats when they are alone.