User friendly - Less than 3 minutes daily for oral temperature taking to get accurate cycle. Ideal for trying-to-conceive women with regular or irregular cycles.</br>No more troublesome urine testing - no expensive test sticks to purchase or other recurring costs</br>Predicts and confirms your ovulation date - the time of month you're most likely to conceive</br>No more paper charting or online input - calendar of the app will tell you when is your fertile??safe and menstrual period</br>Satisfaction Guaranteed - You can return your undamaged product within 60 days to receive a FULL REFUND for any reason. We're also offering 12-month warranty for quality-related issues.</br></br>Product Description</br></br><p><b>How does BLT fertility monitor work ?</b></p><p> Basal body temperature of normal childbearing-age women is periodic?? which is related to ovulation. By collecting and recording user's basal body temperature everyday?? the BLT fertility monitor can analyze and predict the ovulation date correctly. It will remind you of ovulation date as well as fertile??safe and menstrual period.</p> <p><b>Features:</b></p>1. Connect with Apple ISO system all models and Android system 4.3 and above through bluetooth <br>2. Free intuitive app to download at Apple Store and Google Play<br>3. High precision to within 0.05??C<br>4. Battery lasts for more than