【3+1 Training Modes】: The dog training collar not only has 3 modes of sound (3 different frequencies), vibration and electric shock (level 1-99), but also a new mode: the projector mode for dogs. This mode lets you know exactly where your dog is, even in well-lit areas. And each training mode has its own different color to help you train your dog more professionally. 【800M REMOTE RANGE & WATERPROOF】: The waterproof receiver allows dogs playing in the water to receive your commands even 800 meters away from you. One remote control can control three dogs, but please note that our box only contains one receiver. 【Soft silicone cap for better protection】: The contact point of the receiver adopts the latest material in soft silicone, the flexibility of the silicone cap can better protect the dog’s skin. The non-removable silicone stopper not only prevents it from falling off and getting lost, but also from being swallowed by dogs. 【Adjustable collar for a better fit】: The collar is made of