【實用工具app】Dog Whistle PRO!|最夯免費app-綠色工廠好玩App

the Dog Whistle PRO! is great for many uses with your pets!- Assist with training of your dog! - Stop your dog from barking! - Get the attention of your pet! - This app can also be used for your entertainment by triggering the sounds that are annoying to human ears. Features - Multiple frequencies, ranging from 16,000Hz to 60,000Hz that are known to work with all dogs. - Volume meter to adjust the volume of each sound.