No need to buy batteries. USB direct plug interface, charging is simple and convenient. This 3 in 1 USB Rechargeable Funny Cat Chaser Toys is very environmentally friendly, the charging indicator goes off, indicating a full charge. You don’t have to hold down a button! The slider switch firmly clicks into each of the functions (laser, black light, flashlight), you can also exercise the cat’s body, train the cat’s agility, let them grow up healthy and deepen your relationship with your cat and dog. Adjust the funny cat toy pointer to the red light state, you can easily switch gears to get interesting patterns, funny indoor cat toys can print red dots/mice/smiles/stars/butterflies on the ground, a variety of pattern changes to stimulate your pet’s interest, kitten indoor toys will never let