【Four Training Mode】: Strong Vibration/Vibration/Light/Sound. 99 levels of Vibration mode to stop barking or teach sitting and improve dogs unwanted behavior. 【500 Yards Range Remote Control】: The dog training collar set provides a wider range of operations, range up to 500 Yards, allowing you to train your dog in the backyard, park or anywhere else. 【Auto Power Saving】: The remote…