Wireless Blood Pressure Monitor for easy and precise self-measurement of your blood pressure with your smartphone. Simply slip on the cuff, turn on the Wireless Blood Pressure Monitor and the Health Mate app will automatically launch. Following a brief set of instructions, you will be ready to take your blood pressure. Because it makes more sense to track your blood pressure over time, the Health Mate app stores all your BP readings, syncs with the Withings Health Cloud and creates an easy to understand chart. The Wireless Blood Pressure Monitor works with all iOS 7.0 or higher devices, and with Android 4.0 or higher smartphones and tablets using Bluetooth connectivity or your smartphone's cable. The quick Bluetooth installation process lets you get started in seconds. You are only one step away from taking your blood pressure. Includes Wireless Blood Pressure Monitor, (4) AAA alkaline (LR3) cells and User manual.