10 PCS Dog Horse Whistle Stop Barking Silent Pet Training Whistle with Key Chain, Random Color Delivery\t \t\t \t \t \t\t\t\t \t\t\t\t ()
1. It is very light, compact, easy to carry
2. It is made of ABS material
3. Sound frequency: 210.5HZ
2. It is made of ABS material
3. Sound frequency: 210.5HZ