A ESSENTIALS SET KIT-- The pet training set includes 1 x Silver training whistle with lanyard + 1 x Black training clicker with wrist strap. Please buy from Ooopsi. If buy a fake product, please kindly report to Amazon customer service STOP-BARK ULTRASONIC WHISTLE-- The whistle is adjustable to fine tune the proper frequency, easily teach your dog unlimited commands such as sit, come, stop barking, stay, and more, by using sequences that only he/she understand. Silver, lightweight silent bark control for dogs of all sizes and breeds. Comes with lanyard neck strap. BEHAVIORAL CONDITIONING TRAINING CLICKER-- A scientific method of training puppies and young adult pets safely and easily. Can be used to train your dog’s basic obedience, tricks, and to correct bad behavior - . Comes with elastic wrist straps to prevent them from being dropped. Button presses easily and comes right back up without getting stuck. Ideal sound balance - not too loud nor too soft. SCIENTIFIC TRAINING TOOL-- With the clicker and whistle, it's no necessary to punish pet for training any more. Training dogs in this way is safe and easy, make huge changes to dogs&puppies, from sluggish to have great spirit, from fear to be full of confidence, from rudeness to obedience. EASY TRAINING AND HIGH QUALITY-- Well constructed and durable, metal whistle and clicker will not rust or break. 100% MONEY BACK GUARANTEE.