The item in this listing is an Open Box (packaging maybe slightly distressed). The unit powers on with factory settings restored and includes the original accessories. The unit may have some minor cosmetic marks. Product comes with a Minimum 90 days warranty

• The bark collar for large dog is full-automatic. What you need to do is to buy the dog barking control devices home, turn it on, and put it on your dog’s neck. All annoying barking at night or after you leave home will disappear
• Your family and neighbors will enjoy a barking noise-free environment.DINJOO dog bark collar has a safety-off feature that will temporarily stop working for 1 minute if it triggers 6 times. Press any button and will back to work
• DINJOO bark collar for medium dogs come with 4 working modes and 8 Adjustable Sensitivity.No shock mode: beep, vibration, beep+vibration; Shock mode: beep+vibration+shock, provide the most suitable training method for your dog’s barking
• The 1-8 Adjustable sensitivity let you use a progressive training function. This feature makes Anti bark collar incredibly useful to provide positive reinforcement for good behavior
• DINJOO smart bark collar for small dogs adopts advanced smart dog bark recognition chip and motion detection technology. At 1-7 sensitivity, it is only activated when both vocal cord movement and barking are detected. At 8 sensitivity, it is activated when the dog’s barking is detected
• This technology safely and effectively filter other dog’s barking, preventing false triggering and protecting your dog from unnecessary punishment
• With USB charging, DINJOO no bark collars for dogs charge in 2 hours and can last up to 15 days.DINJOO dog bark collar adopts an intuitive large LED color interface, which displays richer content and has a strong sense of technology