Whistle is a direct to consumer pet tracking product and service that tracks your pet’s location on-demand from your smartphone. Founded in 2012, Whistle is on a mission to equip pet owners with simple tools that help them stay connected to their pets from anywhere.

The Whistle 3 offers pet owners fast and accurate location tracking, location alerts for when they leave your house, a trips feature if you want to see where they went with their walker or your kids, and activity monitoring and tracking so you can make sure they’re getting enough exercise daily (or notice when they are significantly less active, which can be an important health signal). The tracking collar is completely waterproof, and the coverage goes anywhere your cell phone could (via the AT&T network).