Amazon.com : Bark Collar Rechargeable Smart Barking Collar Anti Bark DHgate.com:Automatic Anti Barking Dog Collar Barkproof Collars Bark Anti Bark Training Collars Smart Bark Control eDog AU PetSafe Bark Control Collar HBC11 11050 The Home Depot BarkLogic Guardian Smart Bark Stopper 3 Mode Electronic Dog Training C BarkLogic Guardian Smart Bark Stopper 3 Mode Electronic Dog Training C. Product information: Color: drag one, drag two, drag three Material: ABS Category: Pet chain ring, rope Product features: Stimulate the pet to stay in the area you set by variable pulse. Buried wire transmits harmless radio signals to make the system work. When the pet is close to the boundary, the transmitter can transmit the stimulation signal sensitively. Sound and electrical stimulation make the dog remember the fixed area indelible There are additional training flags to make the fence area obvious. 5000 square meters range and purchase additional lines The same transmitter can be used for two or more dogs Rechargeable transmitter The system is mainly used for large and medium sized dogs. Receiver is waterproof design Packing list: Stop barking device * 1 set Product Image: