A&D Medical Wireless One Button Blood Pressure Monitor. Syncs with A&D Wellness App for Apple and Android users. Clinically validated and up to 4 users. 30 reading internal memory storage. Unlimited reading storage with A&D Cloud account. Stores memory with time and date stamp. Multiple users via A&D Connect app. A&D Connect app allows for easy sharing of readings via mobile social applications, email and more. Wide range cuff (Fits size 8.6" - 16.5").