New item, open box. 3 Safe and Humane Training Modes: Beep, Vibration(1-8 levels) and Static(0-18 levels). The remote also come with a safety lock, efficiently prevent your dog from unnecessary punishment due to misoperation. Support 3 Channels Maximum Control, for those who have multiple dogs, and need to train two or three dogs through one remote. Up to 2600 ft remote control range, which makes sure you can enjoy the training time with your dog in open space. Rechargeable and long lasting battery life, the receiver will last for 11-15 days after fully charged, and the remote will last for a month. Fully charged in 1-2 hours, and you can also monitor the battery statue on remote display anytime. Adjustable dog training collar, suitable for All Sizes of Dogs: the leash is 28 inches long , and it can be cut off as needed. Perfect for all size dogs (8 lbs~120 lbs), even puppies fit perfectly.