Dog Training Collar - Rechargeable Vibration Beep Light and Electric Shock Dog Collar With Remote - Water Resistant Behavior Corrective 330 Yards 1000 Foot for all Size Dogs Quietly filters and circulates the air up to 5 times an hour Reduces airborne bacteria, viruses and fungus with proven UV Light Technology Programmable 0-18 hour timer Energy efficient- uses less energy than a 75 watt bulb Reduces common airborn particles