2cmBlack Adjustable Ultrasonic Dog Training Whistle Professional Silent Dog Whistle for Recall

Product information Package Contents 1 × Adjustable Ultrasonic Stainless Steel Dog Training Whistle 1 × Black Nylon Wrist Carry Lanyard with Metal Lobster Clasp 1 × User Training Instruction Manual Product Specifications Material: Rust-proof stainless steel sound tube + soft plastic non-slip grip + metal keyring Total Length: 8.2cm / 3.23 inches Mouthpiece Width: 1.0cm / 0.4 inches Function: Adjustable ultrasonic silent frequency, anti-bark, dog recall & obedience training Included Accessory: Woven nylon lanyard Compatible Breeds: Puppies, small, medium & large dogs of all breeds Structure: Fully detachable for easy cleaning, twist lock frequency adjustment