2 Pcs Dog Whistle, Professional Dog Training Whistle to Stop Barking, Adjustable Pitch Ultrasonic Pet Whistle Training Tool Silent Bark Control for Dog Feature: Conveniently to Carry - It is small and lightweight, just 3.15 inches, you can put it on a key chain or pocket. Bark Control Whistle - Dog whistles are very popular to train your dog without hurting your pet through shocks and other means. Easy Training - Dog whistle provides the easiest training experience of any dog training aid on the market. Safe for Pet Dog - Our Silent Whistle will not hurt your dog's ears when you training your dogs. ANTI-LOSS & SAFE DOG WHISTLE - The lanyard feels great around your neck during your training session with your little puppy or grown up dog. Specification Material: ABS + Stainless Steel Polyester Length of Whistle: 8cm Length of Whistle with Keychain: 9cm Size of Lanyard: 42 x1.5cm Applicationof Whistle: Training Dog, Cat, Parrot, Eagle, Bird, Pigeon, Rabbits... Package Include: 2 x Dog Training Whistle