ULTRA-SAFE BARK COLLAR WITH AUTO PROTECTION MODE - Stay worry-free with our safe, effective bark collars that work by using no-shock, gentle sound & vibration technology. Their '5 sensitivity levels' accurately cater to different barking levels. For maximum protection, if the device vibrates more than 7 times consecutively within a minute, it automatically enters rest mode & resets after a minute. 10-15 DAY BATTERY LIFE WITH 1.5 HOURS' CHARGING - Animigo's anti bark collars for dogs, work with top-notch 'Magnetic Charging Technology' - for rapid full-charge in 1.5 hours that lasts for 10-15 days Along with convenient USB charging, the premium, waterproof dog bark collar also comes with 'Night Light' & 'LED Display'. SUPERIOR COMFORT WITH ADJUSTABLE SENSITIVITY & VIBRATION LEVELS - The dog anti bark collar is 'Self-adaptive' - the intensity of vibration increases with every bark. The vibration & sensitivity levels can be manually adjusted to match your preference as well. The intelligently vibrating dog collar won't react to head shaking, or other dogs' barks & sounds, as its 'Smart Barking Detection Chip' only responds to the throat vibration from your dog. SILENT, REMOTE-LESS, AUTOMATIC OPERATION - Our anti bark dog collar is fully-automatic & the premium technology ensures silent operation. It has a comfortable, waterproof & adjustable strap with a range of '4cm-18cm' for dogs from '7lbs-150 lbs.' We are happy to offer an exclusive '90-day Money-back Guarantee' if you are not satisfied.AT ANIMIGO, PETS ARE PEOPLE TOO - Choose a brand that cares for your pet almost as much as you do At Animigo, we are a family of pet lovers dedicated to finding the best solutions for pets' health & wellbeing in a way that comprises the purest natural ingredients. For care that matches that of humans.SAFETY INFORMATION: Do not use this product on dogs that are aggressive to people or other animals as they may associate training collar stimulation with other control stimulation and become more aggressive. Consult your veterinarian or a certified trainer if you are not sure if this product is suitable for your dog or if they are not in good health. Please read and follow the instructions carefully to avoid the risk of skin damage.DIRECTIONS: We advise you to first test the device by turning it on and setting the sensitivity level to 7. Imitate your dog's bark or blow near the sensors to trigger the device. If it doesn't get triggered in the first instance, please test it again as the frequency of a dog's bark and human's voice are different. After the device is triggered, it will first make a beep sound and then vibrate. After testing, configure the sensitivity and vibration settings of the device to an appropriate mode for your dog. Please ensure that there is enough space between the collar and the dog's neck for you to fit your finger. It should not be worn too tight or too loose. Do not use this collar at the same time as another one. This collar should not be worn for more than 12 hours continuously. It's best to reposition it every 1-2 hours for the comfort of your dog.