the button(white)from 1-8 is to adjust the strength of electronics shock from weak to stong . The button(red)is the voice button to drive the attention of dogs.
  Recording Ultrasonic Bark Control Collar
  6 seconds to record your own commands
  Ultrasonic and audio command to stop the bark
  Triggers accurately by bark vibration
  Can not activated by other dog's barking
  Adjustable stretch collar 
electronics dog traning kit Ultrasonic Bark Control Collar
  electronics dog traning kit Ultrasonic Bark Control Collar
  Portable and convenience for us to train the dogs
| Delivery Time: | 5days | 
| Package: | normal | 
| Supply Ability: | 1000 Piece/Pieces per Day week | 
| Minimum Order Quantity: | 100 Piece/Pieces cartons | 
| Payment Terms: | T/T,Western Union,MoneyGram | 
| Port: | shenzhen | 
| Place of Origin: | Guangdong China (Mainland) | 
| Model Number: | KPD1 | 
| Brand Name: | KPD1 |