REALISTIC MOUSE DESIGN: The electronic interactive cat toys are supplied with a mouse sound chip and build-in radial sensor. The remote control mouse could make realistic mice sound while moves. The size 3.7x2.2x1.6 inches imitates a real mouse size, suitable for all breeds of kitten or small dogs MENTAL & PHYSICAL STIMULATION: All our cats need mental stimulation from play to keep from being bored. The mouse hunt cat toy could fulfill your cat's natural hunting instincts. Physical moving activity from play helps to keep cats physically fit and relieve stress and anxiety SIMPLE USE: Just turn on and put the kitten toys on the flat floor, the moving mouse for cats begins to make a sound while it moves in a unpredictable way and pause after a few seconds. The cat's hard touch would wake it up again. Notice: Please use it on the hard and flat surface, not suitable for use on carpets or rugs.SAFE & SOFT MATERIAL: The electronic mouse toy is made from eco-friendly plush and electronic component in high quality. The battery (Type CR2450) is included, could be replaced by yourself. All materials of the mouse toy for cat meet or exceed all applicable safety standards BEST CAT TOYS SERVICE GUARANTEE: We guarantee that pet cat toys content will be kept under brand new condition. Please contact us by email directly if you have any problem. We could refund or resend one replacement after the problem is confirmation