The multi-functional Bousnic 2000FT Dog Training Collar Waterproof Adjustable Rechargeable Dog Shock Collar 2-Channel with Beep Vibration Shock is a great way to train your furry friend and add a level of safety to nighttime activities. Not only does this collar come with three functions, but each one is adjustable, so you can find a level that's most appropriate for your pup. The LED anti-loss light adds that all-important layer of visibility and safety to activities in the dark, while waterproof qualities protect the technology from inclement weather. The adjustable collar is designed to fit a wide variety of four-legged friends comfortably while ensuring proper contact to be effective. Plus, the remote control has a distance range of up to 2000 feet, so you can keep an eye on your furbaby from a distance.