Workflow and Style - Whistle GPS Pet Tracker

In this video, I demonstrate Whistle, a GPS tracking device that allows you to monitor the location of your pet from your desktop and smart phone.

Whistle is a lightweight transmitter that attaches to your dog's collar. When activated, it sends its GPS location to a cell tower. With Whistle's mapping application, you can then locate and track your pet's location in real time.
After using it on my dog and his visiting doggy friends for several months, I found it to be easy to use, reasonably priced, and, most importantly, it works really well.

Over the next several minutes, I will show you how Whistle tracks the movement of one of our visiting doggy friends using their desktop web application and iPhone app.

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Do you need to pay monthly subscription for the tracker ?