[4 modes, 0 ~ 99 static adjustable levels] The dog training collar with remote control can send 4 signals (beep, vibration, electric shock, light), allowing you to teach your dog to obey your orders or to stop you some movements. You just need to gradually choose the mode that works best for your dog. Suitable for any type of dog, suitable for all breeds of dogs with a neck circumference between 8 cm and 70 cm.