VIWO 2 in 1 Dog Training Clicker & Whistle with Wrist Bands for Clicker Training, Dog Clicker can also be used for Cat Training, Horse Training, Pet Training, etc. Pack of 4 Provide a better quality of living for your pet, tested for safety and health Quality and Performance driven products for your pet Train the dog basic obedience and correct the bad behavior easily It's not only a training clicker but also a whistle Comes in 4 bright colors with wristbands