Dogtras 3502NCP Two-Dog Trainer lets you control two dogs at once up to a mile away in any weather conditions, meaning your dogs can cover more ground, and you can get on more birds. Waterproof plastic casing ensures a wet day afield doesnt ruin your investment. Rheostat intensity adjustment lets you gradually increase or decrease stimulation between 0 and 127, while nick, constant and nonelectric vibration stimulation settings make sure your dogs get the message. Lithium-polymer rechargeable batteries (included) charge in less than two hours, while a tri-color LED indicator lets you know how much life is left when youre out in the field. Easy-to-read LCD screen. Comes with a transmitter, two receivers, battery charger with a splitter cable, rechargeable batteries, test light, carrying case and owners manual. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Training Collars.