Vibration activation:in the intelligent mode, the 's paw vibrates to trigger the operation, so as to the boring time and release the vitality of meow. Feather play with the :feather movement appears randomly to satisfy 's hunting , which is funny. Move randomly:when encountering an obstacle, teaser will turn automatically, and there is no need to worry about it being stuck in the corner. Replaceable feather:the feather is made of makaron natural turkey feather, which is soft and safe, and is replaceable. Automatic felt:with the use of cleaning circle, it can tease the Charging voltage:5V Battery:polymer lithium battery Battery capacity:500mAh Storage mode:USB charging Colour:As Shown Material:plastic Size:156x156x92mm Package Contents: 1 * UFO Toy 1 * USB Charging Cable 2 * Accessory Feathers 5 * Cleaning Circle 1 * Tweezers Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.