A Dog Bark Control Training Whistle is made of high-quality stainless steel, making it durable and long-lasting. It is compact and lightweight, measuring only 5.5cm in length, making it easy to carry around. The whistle produces a high-pitched sound that is audible to dogs but not to humans, making it an effective way to communicate with your pet. 

Specification:

• Item Type: Dog Whistles
• Type: Dogs
  
• Length: 5.5cm
• Is Smart Device: NO
• Material: Stainless Steel
• Package Included: 1 Pcs

• Color: Silver

Note: The dog whistle sound includes 2 parts.

• Part 1: The Ultrasonic. The human ears can not hear it, but dogs can hear it.
• Part 2: These light sounds can be heard by humans, which helps the owner sound a long or short whistle to train them.