Update 10/18/17: If your dog won’t stop barking or you just need to train them where to go, Amazon has you covered with their #1 best-selling dog halter harness, currently on sale. The Pettech PT0Y1 Dog Training Shock Collar drops to $16.99 Prime shipped with the on-page coupon. This is down from $32.99, and an Amazon all-time low. Rated 4.3/5 stars from over 1,400 reviewers.

Amazon offers the Whistle 3 GPS Pet Tracker & Activity Monitor for $50.96 shipped once the on-page coupon has been clipped. That’s good for $29 off the regular going rate as well as at Best Buy, is $10 under the Amazon all-time low and the best offer we’ve tracked. Over 1,300 customers have left a 4.1/5 star rating.

Whistle GPS Pet Tracker features:

  • Meet Whistle 3—the best all-in-one GPS location and activity tracker for dogs and cats—Smarter pet care is here. 
  • Proactive Alerts: Get email, app or text notification when your pet leaves their safe place using Wi-Fi before they get too far away
  • Nationwide coverage on the AT&T cellular network: Whistle uses advanced GPS and cellular technology to pinpoint your pet’s location anywhere in the U.S. on America’s largest network. 
  • Monitor Activity: Track your dog’s daily activity and rest to keep your companion in great shape for their age, weight and breed.
  • Battery life: Whistle 3 has the longest-lasting battery of its kind and can last up to 7 days. Battery life is impacted by the strength of your Wi-Fi and cellular coverage.
  • Durable + Waterproof: attaches to any collar or harness up to 1” wide and designed to go anywhere with your pet, even swimming. 

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