This easy-to-use, fully automatic blood pressure monitor is a great way to measure your heart rate and pulse at home or on-the-go. It wraps easily around your wrist and features a large, easy-to-read, back lit digital display screen that shows your systolic and diastolic pressures, as well as your pulse. It includes 2 user modes with storage for 199 readings each, and has an irregular heartbeat indicator. Req. 2 "AAA" batteries (sold separately). Comes with a storage case that works as an armrest for accurate measurements. Cuff adjusts to fit most. Plastic, electronics and nylon. Approx. 3 1/3"L x 2 1/2"W x 1"H.