This dog training collar can support 1 dog with a remote control at most. Dog Training Collar with 4 Modes - The dog training collar offers 4 training modes: sound, vibration, light and electric shock. You can change the vibration and shock level from 1 to 100 for a more effective workout. Teaching your dog basic commands and problem solving is more practical and effective. Safety lock and reflective TPU collar - you can lock the keypad to prevent accidental electrostatic shock, so that you can carry the remote control without any accident. In addition, the collar strap has reflective coating, allowing your dog to be seen by motorists at night. 1000m Range - The training collar uses 915MHz radio frequency to provide a range of up to 1000m, allowing you to easily train your dog anywhere. Note: this range is on a straight line between the remote control and the collar, without any obstacle in between. Otherwise, the range may be reduced. IPX67 Waterproof-This collar is very suitable for
