Product Description With lightweight and portable feature, monitoring your blood pressure and heartbeat anytime, anywhere. Battery powered, easy to carry, suitable for travel, business trip and home use. With large adjustable wrist cuff 13.5CM-19.5CM, this blood pressure monitor is suitable for most of adults. Details:The reading will clearly show on the large display. Lightweight machine with simple look, suitable for Teens and Adults. Additional Features: The digital blood pressure monitor wrist cuff is fully automatic, just need press one "Start" button to measure your blood pressure and heart rate. The whole process takes less than 1 minute. For an accurate measurement reading, please follow the instructions on the product description or owner's manual. Improper operation may cause large errors. Specifications: Type:Wrist Pressure Range:0 to 280mmHg Pulse Range:40 to 199 times/Minute Pressure Accuracy:within 3mmHg(0.4kPa) Pulse Accuracy:5% Memory:99 sets Auto off:1 Minute Shutdown Current:<100uA Power Source:DC3V,2 * AAA Battery(NOT INCLUDED) Package included: 1 Blood Pressure Monitor(without battery) 1 Cuff