Prime PET Ultimate Dog Training Kit: Adjustable Ultrasonic Dog Whistle with Anti Loss Cover + Breakaway Lanyard + Dog Clicker + Set of 3 Free Dog Training Ebooks GUARANTEED TO STOP BARKING AND TRAIN DOGS - The PRIME PET Dog Whistle is the best and most reliable silent dog whistle available! Match your dogs sound frequency with the adjustable pitch and quickly train your dog to stop barking and follow simple commands. NEW TRIPLE PROTECTION GUARD: ANTI LOSS, ANTI DIRT & FREQUENCY MEMORY COVER - Protect your PRIME PET Dog Whistle from loss, keep dirt away and save your dogs matching frequency from accidentally changing. PREMIUM EASY RELEASE BREAKAWAY LANYARD - High quality and durable lanyard to quickly access your PRIME PET Dog Whistle. You can also release the whistle from lanyard at any time using the convenient breakaway buckle. EASY TO USE DOG TRAINING CLICKER - Double your dogs training efficiency with PRIME PET Dog Clicker. Mark your dogs progress with positive reinforcement. Our dog training clicker comes with a wrist strap, fits in the palm of your hand and has a big button for easy clicking and loud sound.