Worn for approx. 30 days and now is no longer needed. Has been in the box since.
All original parts. No issues.
From the website: Ava 2.0 uses sensor technology to reveal what's really happening with your cycle whether you are trying to conceive, are pregnant, or simply want to better understand your body. Worn only during sleep, Ava eliminates the guesswork around tracking your cycle. Syncs with iPhone and Android. Tested for cycles 24 to 35 days. Not tested for PCOS.