Ava fertility monitor tracker - femtech

Hello! I recently purchased this from another person but after a few days of using I realized I wanted a different device. Comes with everything you see! I didn't receive it with a charger but it uses a universal USBC charger. One of the "security straps" (not sure what to call them) did come off but it has the 2nd one that is enough to keep it secure. Please let me know if you have any questions! Offers welcome