MASBRILL Ultrasonic Anti-Bark Dog Training Equipment and Ultrasonic Dog Repeller, Barking Control Devices Handheld and Portable Dog Bark Deterrent Devices

FEATURES: Humane dog training tool The ultrasonic bark control device emits an ultrasound of 25 KHZ, it can grab dogs' attention,it is 100% safe . Dog training The anti barking device helps you correct their behavior.Such as eating unsafe foods, digging, fighting, and other bad behaviors. Dog training and barking control devices :The ultrasonic dog barking control devices can correct dog's bad behavior . Ultrasonic frequency is 25 KHZ , it can grabs your dogs’ attention , 100% safe for dogs.  Great for small/medium/large dogs : The dog barking control devices effective for dogs of all breeds and sizes of age 6 months to 8 years old. 3-in-1 Dog training barking control devices : the bark control device has 3 modes. "Sound " "Ultrasonic " and "Flash light".You can starting with "sound" mode first, if it no effect,then try to “ultrasonic ”or “flash light”mode. Rechargeable : The UItrasonic dog barking deterrent is rechargeable. it can full charge within 2 hours,then works a