Queath Dog Barking Control Devices,Led Light Rechargeable Bark Stopper Pets Dog Deterrent Indoor & Outdoor,Anti Barking Device,Collarless Remote Trainer,Handheld Ultrasonic & Tone Dog Training

【Multi-functions】 except as a pet training tool, it also can prevent you from dog attacks, fit for training many kinds of dogs, such as pets, dogs in police and shepherding, suitable for outdoor work, travel and security night patrol. Note: May not be effective for large dogs and fierce dogs. 【Ultrasound design】based on the theory that ultrasound, the dog trainer can effectively train your dogs to be obedient and stop some unwanted behaviors, such as barking, digging, chewing and more,Lightweight and portable, this handheld dog bark control system stimulates dogs through sound that humans can’t detect and won’t hurt the auditory sensors of pets or other animals for safer daily training. 【Easy to operate】This handheld dog trainer is rechargeable with a battery capacity of 1800mAh. When fully charged, it has 3 lights that stay on. The side buttons fluctuate to the corresponding mode, and the long button outputs ultrasonic waves continuously for 8 seconds with 7 cycles of frequency change. It can work well and can also be used as a flashlight if necessary. Note: The effective range of this product is 50 feet. 【Efficient & Safe Frequency】This barking control device can emit 23KHZ fixed frequency and 27KHZ variable frequency,which human won't receive but works for dogs. The dog whistle to stop barking has no shock, no vibration,no noise,no touching the dog's skin,nor will it affect the dog's hearing,so harmless to dogs. Suitable for small medium large dogs. Handheld and convenient:which is portable and handheld, also convenient for you to carry anywhere you need, such as jogging or walking, cycling, park and so on.Protect yourself while Walking, Jogging or Bicycling. Carry it around to drive away unfriendly dogs encountered on the road.