Yoo Bluetooth Wireless Smart Activity Tracker, Easy Clip on!Format: Retail Pkg Age: Platform: N A It"s time to work towards a new you with the Yoo Mini Wireless Activity Tracker. This easy to use tracker is just like change in your pocket because it"s just the size of a quarter! Use the included clip to attach it to your shoe or belt or simply slip it in your pocket. It will then go to work tracking your steps, distance, and calories burned. The tracker wirelessly syncs with your device and the Yoo Fitness app