Package includes: a lanyard, an ultrasonic dog whistle and a training rattler is a suit, there are two sets of products, each set weighs about 48 grams, the suits are all black, the whistle is 0 .7 cm wide and 8 cm long. The lanyard has a total length of 50 cm and a width of 1.6 cm The soundboard has an elastic spiral telephone line and the other end is a key ring. You can hang it on your pants and bags to avoid losing it. Likewise, lanyards can also prevent the whistle from being lost. When training dogs, it is more convenient for you to free your hands to interact with the dog. Effective pet training: dog clicker with big button for easy clicking and loud sound , help train the dog's basic obedience and tricks, while correcting bad behavior. Teach things like sit, fetch, shake, lie down and roll over The whistle can be set to produce different sound frequencies corresponding to different passwords. This product is suitable for dogs of all ages and breeds. Instructions: Loosen the sonic adjustment screw. While blowing air from the air inlet, turn the height adjustment lever and tighten the sound wave adjustment screw. Color:Black < p>2 Pack Red Beast Training Rattle Set and Ultrasonic Whistle with Lanyard to Stop Barking The soundboard has an elastic coiled telephone line and the other end is a keychain . You can hang it on your pants and bags to avoid losing it. Likewise, lanyards can also prevent the whistle from being lost. When training dogs, it is more convenient for you to free your hands to interact with the dog Effective pet training: A dog clicker with a large button for easy clicking and loud sound, helps train dog's basic obedience and tricks, while correcting bad behavior. Teaching things like sit, fetch, shake, lie down and roll over The whistle can be set to produce different sound frequencies, corresponding to different passwords, and this product is suitable for dogs of all ages and breeds Instructions: Loosen the sonic adjustment screw. While blowing air into the air inlet, turn the adjustment lever to the maximum and tighten the sound wave adjustment screw after rotating it Package includes: 2 Lanyard 2 Ultrasonic Dog Whistle 2 Training Clickers