HotSpot Remote Control Rechargeable and Waterproof Dog Training Shock Collar for Two Dogs Provides a professional 100 level shock and 100 level Vibration with LCD Remote Electric Training Collar The strong static impulse can penetrate the hair of the pet and fabric within 6mm thick The warning vibration will let the pet associate the vibration with the static impulse With the movement induction power switch in the collar receiver, it will turn on/off automatically to save power Convenience of easy-to-read LCD screen shows the stimulation level; Over 3,000 different identity codes to prevent conflicts with other e-collars