Digital Sphygmomanometer DS-300 - With Talking Function - by Omega The symbols on the LCD display 1.Systolic blood pressure 2.Diastolic blood pressure 3.Memory symbol 4. Heartbeat symbol (Flashes during measurement) 5.Average value symbol 6.Battery low symbol 7.Date/Time display 8.Pulse display 9. Irregular heartbeat symbol 10.Movement error symbol 11.USER B 12. USER A 13.Mute symbol 14.Cuff self-checking function Specifications: 1. Talking function 2. Double users: 2 x 120 sets memory 3.Cuff self-checking function 4. Irregular heartbeat checking 5. Average value function 6. Low battery display 7. Auto power-off 8. External power adapter support 9. Volume adjustment 10. Date/time display Note: - Arm circumference should be measured with a measuring tape in the middle of the relaxed upper arm. - Do not force cuff connection into the opening. - Make sure the cuff connection is not pushed into the AC adapter port.