1000 Yard Waterproof 2 Dog Shock Training Collar with Remote Rechargeable 4level Both the receiver and remote can be recharged, collar is waterproof!! Spend less time training and more time playing with your dog! This shock collar is a great way to train your dog to stop bad habits. The collar is a safe way to take your dog to large open areas because the range of the remote is up to 1,000 yards. Also, the remote is very easy to use and small enough to fit in your pocket. The static impulse is very strong in order to go through a dog's hair (6mm thick). Therefore, the discharging point does not have to touch the dog's skin. This feature ensures that our product is very SAFE for your dog. Comfortable waterproof collar Adjustable Collar Length: Max. 24inch Min.19inch Waterproof and rechargeable, LED signal, beep signal You can check the battery by viewing the indicator on the remote or by viewing the LED on the collar Collar and transmitter rechargeable with lithium batteries Range up to 1,000 yards 4 Levels of static correction Both remote and collar go on sleep mode after about 3 minutes LED light can be used as a training signal