FITS BIG & SMALL DOGS: A new, small, lightweight design. Made for small, medium or large dogs, 10 lbs and up, 5 months and older. The adjustable dog collar allows for a custom fit to your dogs exact neck size, from 8 inches to 30.5 inches
40+ HOUR BATTERY LIFE: 40 hours (or more) between charges. Plus, more rugged, with improved waterproofing, better wireless performance, a louder speaker, stronger vibrate, & improved static
CUSTOMER SERVICE & DOG TRAINING: Download the app to create & store GPS fences. If you need technical help on battery life, collar sizing, the Halo app, or dog training, contact the Halo Dog Park, our customer service team, for live 1:1 support