Petrainer Dog Training Collar 330yd Remote Dog Shock Collar with Beep, Vibration and Shock Electronic Collar Immensely Popular E-Collar used by Expert Trainers & First Time Pet Owners; Can be used to help correct barking, walking, leash training, sitting, aggression, and other behavioral obedience Remote Training Collar is designed with RF434Mhz technology to provide a range up to 330 yards, easily train your dogs in the park or backyard Petrainer dog collar with 2 receiver collars train 2 dogs at the same time, TRAIN 2 DOGS AT ONCE Dog Shock Collar with 0-100 Levels of customization for Static Stimulation & Vibration, and a standard Tone (Beep) Mode, three types of stimulation make it guaranteed you will find a stimulation that works for your dog Rechargeable and Rainproof collar receiver and transmitter; Adjustable collar strap, fits dog's neck sizes from 14 to 23 inches