GSI High Quality Ultra-Safe Super-Range Electronic Remote Control Dog Training Collar System - Includes Transmitter, Receiver and Weather-Proof Secure Collar - Ideal for Calling or Locating Dog with Light, Vibrations or Static Shock Impulse Static Shock Impulse will Penetrate the Hair of Pet - Quickly Curb Improper Deeds Great Training Tool, Connect Receiver To Adjustable Collar - 1 Year Warranty Only From GSI Inc. Warning Vibration Functions which will eventually Achieve the same Results as Static Light Button Will Produce Light Flashes, For Finding Dog At Night Ideal for the Great Outdoors or for Inside the Home, For the Professional Trainer or the Private Owner