Overview:One remote control for two dogsTwo collars included6 levels of electronic-shock/viberating for different conditionsSafe for dogsSoft collar is comfortable to wearStrongest electronic shock is effective for big dogsViberation makes communication "Overview:One remote control for two dogsTwo collars included6 levels of electronic-shock/viberating for different conditionsSafe for dogsSoft collar is comfortable to wearStrongest electronic shock is effective for big dogsViberation makes communication with your dog in gentlyWaterproof collarBendable antenna for remote control4 * 4LR44 6V + 1 * 6F22 9V includedSpecifications:Dimensions: 2.36 in x 1.38 in x 1.85 inWeight: 13.72 oz

Overview:For one dog only2 levels of electronic-shock impulse for different conditionsCollar is rechargeable via USB.Safe for dogsSoft collar is comfortable to wear.Viberation makes communication with your dog gently.Waterproof collarBendable antenna for "Overview:For one dog only2 levels of electronic-shock impulse for different conditionsCollar is rechargeable via USB.Safe for dogsSoft collar is comfortable to wear.Viberation makes communication with your dog gently.Waterproof collarBendable antenna for remote control- 2 * AAA 1.5V included