(3 Training Modes) This dog shock collar has 3 modes: standard tone, vibration levels (1-8) and shock levels (1-16). These modes are designed to correct dog behaviors such as aggression, peeing in the wrong place, sitting at the wrong time, unnecessary barking and other inappropriate behaviors. (800m Remote Control) The dog collar is designed with a remote control range of up to 800m, so you can easily train your dog in the yard or park. (Safety Lock Button and Memory Function) The safety lock button protects your dog from accidental operation. The setting memory function makes it easy to use, which means there is no need to reset the collar. (Waterproof and Rechargeable) The 100% IPX7 waterproof receiver collar allows you to train your dog even on rainy days. But when the receiver is immersed in water, please make sure the charging port is closed and do not put it in water for a long time. The rechargeable transmitter and receiver can be quickly charged simultaneously. Can be used