The cat toy balls are made of and durable plush material, they are soft and safe. The size is 5 x 5 x 5 cm / 2 x 2 x 2 inches, which is easy to carry and suitable for indoor and outdoor activities. They are equipped with a built-in LR41 button battery and a high-sensitivity alarm that can produce a variety of analog sounds.Calling BallThe kitten plush ball can imitate the sounds of frogs, crickets, birds and other animals. Different colored cat balls make different sounds to stimulate the cat's hunting instinct, which can last up to 10,000 sounds.Cute ShapeThe interactive cat ball has three colors: blue, pink and yellow. The sphere is soft and has beautiful eyes. Bright colors and lively design can easily attract cats' attention.AttractiveAfter opening the lid, you can add catnip to excite the cat. This can encourage cats to exercise, stimulate their thinking, and keep your cats active and healthy.Intelligent Strike TriggerThe cat strike toy has a built-in high-sensitivity alarm, as long as the cat's paw lightly touches the ball, it will make a sound. This kitten toy will become your cat's best playmate, helping your cat reduce loneliness and separation anxiety. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.