Bark Collar Small Dog Rechargeable - Dog Barking Collar For Small Dogs - No Bark Collar Small Dog - No Shock Bark Control Device - Humane Stop Barking Collar - Anti Bark Dog Training Collar Waterproof Dog's own collar threads through loops to keep it in place. Light, comfortable, and machine washable. With so many people keeping small dogs in upper-floor apartments, this is one products that really could save a life." ~ Dr Marty Becker, Good Morning America.