Accurate and Professional Care, Healthy Body and . LARGE LED DISPLAY - Simple large numbers more clearly to read. LED Display With Clear And Large Numbers. Your Professional Family Doctor, Best Gift For Parents. CLINICALLY ACCURACY - Professional grade chip and optimized algorithm helps to lock the Most reliable readings . Easy one-button Operation - User friendly,1 minute to get accurate result. Irregular Heartbeat Detection - Sensitive enough to track irregular heart rate. Power Supply:4 x AA batteries(Not included batteries) Please note:the physical slightly color difference or difference, does not affect the use, please do not mind, thank you! Colour:White Material:Plastic Package Contents: 1 * Electronic Blood Pressure Machine Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.