Timing Function Smart Funny Cat - Timing function Smart funny cat, smart timing play, work 15 minutes after every 1.5 hours. When in random mode the interactive cat toy automatically turns the laser off after 15 minutes to prevent your kitty from beingover-stimulated and keep the game exciting. Adjustable 3 Speeds Modes -Choose slow, fast, . Pick the one that pleases and suits your cat. Older cats may respond better to slow while young, energetic cats prefer fast or random. Helps your cat maintain his or her natural hunting skills. Improvesmood, temperament, and appetite. USB Charging or Battery Powered - The light will not harm eyesight. Operated by 3 AA battery(not included) . You need to plug in the USB or install the battery to open this toy You can take this toy to any safe place. The cat will not be limitedto a small spot like other toys do.