Dog Training Collar by TCBunny&reg; / 1000ft Range / Rechargeable and Water Resistant / 8 Levels Of Shock And Vibration + 2 Sound Modes / For Medium To Large Sized Dogs / GET YOURS NOW! LCD Screen, with vibration, static shock, and beep function.Over 3000 different identity codes to prevent conflicts with other e-collars. Up to 1000 yards range, which allow you and your pet play on a big open area 4 Modes: Vibration, Shock, 2 Sounds. 8 levels for adjustment Waterproof collar, Long time standby work, 3 Days, 1.5 Hours working time Saving beads switch inside will ring if you shake the receiver. Everytime you reset the receiver, you need to match code again.