Safer Humanized Setting: The dog bark collar has 4 working modes, no shock mode: beep, vibration, beep+vibration; Shock mode: beep+vibration+shock, 5 adjustable sensitivity levels; Just press the M button to switch the mode at will, you can enjoy quiet time | Automatically Stop Dog Barking: FAFAFROG bark collar for large dog adopted with the upgraded smart dog barking recognition chip, 2 activation conditions: Bark and vibration from vocal cords to better protect your dog from accident shock(No remote) | Protect Mode: Smart color display clearly shows the working status and power level; If the dog bark collar has been activated 6 times continually; The bark collar will stop working for 30 seconds (the digital display changes to "8"), protect your dog from unnecessary activation | Fast Charging & Waterproof: The bark collar for medium dogs new magnetic charging, simple operation and more stable charging, full charge in 2 hours works for about 15 days; Bark collar for large dog IP67 waterproof design, you can enjoy training time with your dog in the pool, park, beach, backyard | Fits Most Dogs: Our dog bark collar is adjustable for dogs weighing 8 to 120 lbs with neck size of 8 to 25 inches, Adjustable anti barking collar for dogs size so you can keep using it as your dog grows