This blood pressure monitor comes with these features The Microlife B2 Basic enables a comfortable and accurate upper arm blood pressure measurement at home. This blood pressure monitor records up to 30 measurement values and is equipped with technology for the early recognition of heart arrhythmias. High quality conical cuff 22-42cm - Suitable for all common arm sizes PAD technology - For heart arrhythmia detection 30 data memory - Automatic storage of the last 30 measurement values Adjustable time and date - For easier follow-up of the blood pressure values Traffic light indicator - Easy to read classification of blood pressure result Memory-average function - Gives useful information about the general blood pressure level of all readings on the device Model no.: BP B2 Basic Dimensions: 131 x 90 x 60.5 mm Weight: 277g (including batteries) Voltage source: 4 x 1.5 V alkaline batteries; size AA or mains adapter DC 6V, 600 mA (optional) Measuring range: 20 - 280 mmHg (blood pressure) 40 - 200 beats per minute (pulse) All Microlife blood pressure monitors have been clinically tested for special patient groups such as diabetes, end-stage renal disease, pregnancy and pre-eclampsia, hypotension and children (from age 13). In the Box Conical M-L soft cuff (22-42cm), 4 x AA alkaline batteries, textile soft bag and BP diary