Fitbit Flex FB401 Activity Tracker & fitbit fb301 belt clip. untested for parts

This Fitbit Flex FB401 activity tracker and Fitbit FB301 belt clip are available for purchase. The tracker is designed to monitor your activity levels and keep you fit, while the belt clip allows you to easily attach it to your waist. This product is suitable for both men and women, and is perfect for those who want to stay active and track their progress. The Fitbit brand is known for its quality and innovation, and this activity tracker is no exception. It is perfect for those who want to stay on top of their fitness goals and stay healthy. not sure how they work of if the work selling both as is for parts tryed a battery i had in the 301 still didn't turn on but i really dont know how it works