electric dog collar 3 training modes and 2 channels

3 training modes and 2 channels. This dog electric collar provides beep, vibration(levels 1-8), and shock(levels 1-16). You can operate 2 collars with the same remote and switch easily between dogs • Suitable for different size dogs: The nylon collar belt is adjustable, and the training collar is suitable for dogs from 15 lbs-100 lbs • 1000Ft range and not rechargeable: Both receiver collar and remote control are not rechargeable. And you can freely train your dog in the yard or at home, the shock collar is convenient and easy to operate