The DOG BARK Control Device

The "DOG BARK Control Device" uses ultrasonic sound to deter dogs from barking. It is marketed as an easy-to-use, humane training tool. 

Key features include:

• Ultrasonic Technology:
• Emits a high-frequency sound, inaudible to humans, that is intended to interrupt and discourage barking. 
  
• Ease of Use:
  Designed for simple operation, often with a single button to activate the ultrasonic sound.
• Rechargeable:
  Powered by a USB rechargeable battery.
• Range: Effective within a certain range, typically around 16.4 ft, but some can reach 50-150 ft.
• Multiple Modes/Levels: Some devices offer adjustable frequency levels for dog sizes or temperaments.
• Safety: Generally considered safe and humane, but may not be suitable for puppies under one year old.
• Effectiveness: Varies among dogs; some may respond quickly, while others may not be affected.
• Additional Features:Some models include a screen display or a flashlight function.