Features_x000D_One-button easy pressure measurement, abandoning difficult to learn complex operations._x000D_Easy to Read: The large digital display on the screen is convenient the elderly to watch, and presbyopia can be seen clearly._x000D_Adjustables Large Arm Cuff: Adjustables and fits for most standard and large adult arm sizes, easy to put on and take off by one person._x000D_ACCURATES MEASUREMENT EASY TO USE: Digital filter technology makes monitors quickly highly accurately identify systolic pressure, diastolic pressure and heartbeats-rate. _x000D_Portable: This electric automatic wrist monitors is more compact and portable, convenient for checking blood pressure anytime and anywhere._x000D_Notice:_x000D_1.Actual color may be slightly different from the image due to different light effect_x000D_2.Please allow 1-3cm deviation due to manual measurement_x000D_ _x000D_Description:_x000D_Power supply: 4*AAA batteries self-providedPackage List:_x000D_1x Arm Style Blood Pressure Meter