Bousnic Dog Shock Collar 2 Dogs (5-120Lbs) - 3300 ft Waterproof Training Collar for Dogs Large Medium Small with Rechargeable Remote, Beep (1-8) Vibration (1-16) and Humane Shock (1-99) Modes3300ft Remote & Through Wall Antenna: Our dog training collar is delivered with a 1100yards (3300ft) control range, making it be freedom train indoors or in backyards without any delay to receive a signal, no more shouting and chasing to have a good boy! 3 Separate & Adjustable Training Modes: Our shock collars offer 3 humane operation modes, Beep (1 8), Vibration (1 16), and Safe Shock (1 99), allowing you to train dogs in accordance with their