Feature: 1. 2 in 1 function design, training clicker and recall whistle. 2. The training clicker will have the clear sound after pressing the heart‑shaped button easily. 3. The mouth whistle produce high frequency sounds, which have excellent penetration. It can be used in different environments. 4. Integrated design, solid and reliable. The bracelet is designed to be worn on the wrist, easy to carry and prevent lost. 5. The training whistle used to train your dog to eat or summon him, scientific method of training your pet safely and easily. Specification: Condition: 100% Brand New Item Type: Training Whistle & Clicker Material: Plastic Color: As Pictures Shown Single Product Size: Approx. 7x3cm/2.8x1.2in Weight: Approx. 122g/4.3ozSuitable for Pet Type: Dog How It Works: Train Your Dog to Eat or Summon Him with a Training Whistle. Package List: 1 x Blue Clicker1 x Red Clicker 1 x Black Clicker1 x White Clicker