This dog collar is waterproof and can be used on rainy days. it can keep your pet away from water, snow, sand, dirt, and dust.This dog collar is rechargeable, it can be charged by a usb cable. when you need to use it, just plug it into the power supply and start using it again. The dog collar is made of high-quality ABS material, which is durable and can be used for a long time. The electric dog collar is equipped with a rechargeable battery, which can be charged by a power bank, remote control, and other electronic devices. The electric dog collar adopts a special design, which is very suitable for pets who are interested in dogs. our electric dog collar has been strictly inspected and packaged to ensure the safety of your pets during training.