Arm Type Blood Pressure Monitor LCD Digital Display One-touch Operation Blood Pressure Monitor Portable Tow Memories Blood Pressure Monitor. Features: - Blood pressure monitor features advanced technology to automatically inflate and deflate at the appropriate level, delivering a personalized accurate, and comfortable measurement. - It can also calculate average blood pressure value based on the last three readings. It is convenient for you to use at home or take it out because of the compact size, so you will never miss a measurement. - This monitor automatically takes the reading during inflation, with better percision and it's less affected by breathing or movements during measurement. - Supports 2 users and 99 sets of readings for each user. - Display provides a large digital screen to see and read your results easily. Specifications: Type: Arm Type. Power Supply: 4 x AA Batteries USB 5V Adapter. Pressure Measurement Range: 0-295mmHg. Pulse Rate Measurement Range: 40-199. Pressure Accuracy: ±3mmHg. Pulse Rate Accuracy: ±5% BPM. Memory: 2*99 Memories. Automatic Shutdown: 30s. LCD Size: 6.0*7.7 cm. Cuff Circumference: 22-36 cm OR 22-42 cm. Package Included: 1 x Host. 1 x Universal Cuff. 1 x Storage Bag. 1 x Quick Guide. 1 x Use Manual. 4 x AA Batteries