F-color Dog Training Collar, Range 2600ft Rechargeable Dog Collar with Remote, 4 Modes Light Beep Vibrating Water Resistant Collar for Medium Large Dogs Breed, 3 PackLong Remote Range: Electronic dog training collar with remote range up to 875 yards (2600ft) if no obstacles or interference, easy to train your dog in the park or backyard; The transmitter can control up to 3 collar receivers 4 Training Modes: Dog Training Collar with 0 100 Levels for Vibration, a Tone and a LED Light Mode, 4 types of stimulation help correct barking, walking, aggression and other behavioral obedience, popular E Collar used by Expert