Meet the PRO 550 Plus: a dog trainer and tracker that lets you train up to 3 dogs one-handed. It has a range of more than 2 miles. You will be able to customize training for each dog with 18 levels of stimulation.
The built-in display shows you which direction your dogs are moving with a range of more than 2 miles. PRO 550 Plus uses GPS and GLONASS to lock in the position of each collar. The rechargeable battery lasts up to 24 hours.