Features 3 ModesSmart Ball For Dogs has 3 modes. Including rotation, Jump and roll modes. When turned on, it automatically moves, shakes, or bounces to attract the dog's attention. Free TrackRemote Control Dog Ball can simulate animal, attract the dog to play, automatically adjust the direction when encountering obstacles or wall. Odorless MaterialMade of natural TPU material, the Moving Dog Ball is odorless and environmentally -friendly. Dogs will have no safety and health issues from chewing and playing. Exercise MoreCats can chase, jump, catch and pounce for a happy workout. Rolling Ball For Dogs will encourage your cat to get more exercise. It can help the cat relieve boredom Perfect ServiceIf you encounter any problems during the shopping process, please contact us by email and we will provide you with excellent after-sales service. Specifications Size: 8cm/3.15nch Material: Silicone+ABS Battery: 500mAh Weight: about 165g Charging voltage: 5V Working Mode: Jump Mode/Roll Mode Waterproof level: IP54 Standby: Working all the time: 4 hours Scope of application: pets such as dogs and cats Package includes 1 x Toy ball 1 x remote control 1 x charging line 1 x Instructions