Technology Makes it More Efficient and Safer<br><br> Dr.Trainer has a professional team that is committed to the observation and study of pet psychological behavior and exploring better communication methods between humans and pets. Our dog bark collar has been rigorously gone through reliability tests to ensure its performance and your dog's safe.<br><br> <b>Phone App </b><br> Support the virtual remote control via your mobile phone. It's not only a smart bark collar, also can be used to as a dog training collar. No need for a control remote, just app! No longer have to warry about losing the remote control<br><br> <b>IPX7 Waterproof</b><br> The bark collar is waterproof and the fact that your dog can swim freely, take a shower with it and even play in the water can easily prove that. So you can use it on your dog in different weather conditions.<br><br> <b>Efficient Quick Charging</b><br> Can you imagine only 5 minutes’ charge could provide 1-2 days battery life, which means it only takes 40 minutes for the battery to be fully charged, and the operating time can be up to 2-3 weeks.<br><br> <b>Package: </b><br> 1 x Device<br> 1 x Adjustable Nylon Collar <br> 1 x USB Charging Cable<br> 1 x User Manual<br> 1 x Test Light<br> 4 x Contact Points<br>