1. Large lcd size: 45.5 x 34.5 mm with digit height 13.5 mm 2. 2x90 groups memory function 3. Average calculating for the latest 3 times measurement value 4. Blood pressure classification (who) indicator 5. Irregular heartbeat (ihb) indicator 6. Year/month/date/time functio 7. Accuracy: pressure +/-3mmhg, pulse+/-5% 8. Automatically inflate and deflate, 9. Power by 2 aaa size alkaline batteries 10. Automatic power-off function. Packing details: 1. Product size: 79x66x64.5mm, 2. Gift box size: 8 8x87x87mm, 3. Meas: 462x370x196mm, 40pcs/ctn, 4. N. W/g. W.: 9.7/10.3kgs, 5. 20': 39, 200 pcs /980ctns, 6. 40': 80, 000 pcs /2, 000ctns,