Aetertek 600 YARD REMOTE DOG TRAINER WITH WATERPROOF RECHARGEABLE DOG TRAINING SHOCK COLLAR: 7 ADJUSTABLE SHOCK LEVELS PLUS BEEP TONE AND VIBRATION Can be used as 1-1 & 1-2 & 1-3 remote dog training shock collars Vibration, Beep and 0-7 adjustable level of Shock correction mode Rechargeable and waterproof receiver collar Remote control dog trainer up to 600yards (approx. 550 meters), suitable for all dog size from 15-150lbs CE,ROHS,FCC Approved. 1 Year warranty