Bark Collar with Dual Vibration Version,Smart No Shock Bark Collar for Large/Medium/Small Dogs,Anti Bark Collars for Dogs with 8 Adjustable Sensitivity Levels,Rechargeable and Waterproof B659 No Bark Collar The ultrasonic will not negatively

The ultrasonic will not negatively affect the dog's hearing or health

Vibration Mode

During this period

the sound modes are good enough to control your dog

Bark Collar with Dual Vibration Version,Smart No Shock Bark Collar for Large/Medium/Small Dogs,Anti Bark Collars for Dogs with 8 Adjustable Sensitivity Levels,Rechargeable and Waterproof B659 No Bark Collar The ultrasonic will not negatively4 Training Modes and Automatic Protection System: Sound,Vibration,Sound+Vibration,Sound+Vibration+Strong vibration. Strong vibration and vibration modes can be adjusted from 0 to 8 intensity levels by pressing the level button. In the case of continuous barking in the mode with strong vibration,the bark collar will be gradually increased to a total of 7 cycles. Increasing to 7 levels before entering 1 minute Protection Mode for your pet. 8 Adjustable