Description We offer you this high comfortable Blood Pressure Machine. Get accurate readings in no time, with the least amount of discomfort. Equipped with the unique and advanced Double Pulse Detection Algorithm (DPDA), our Blood Pressure Monitor delivers actual readings in just 30-40 seconds. Feature - Color: White. - Material: Plastics+Electronic Components+LCD. - Size: 18 x 12 x 12cm. -Measurement method: oscillographic method. - Measurement range: Blood pressure: 20 mmHg - 280 mmHg. Pulsation: 40-200 pulsations per minute. - Accuracy: - Sensitivity: ±3mmHg（±0.4kPa） - Storage Temperature: - 20 ~50℃ - Temperature of service: 10℃~40℃ - Moisture Conditions for Use and Storage: 40%~85% - Display: LCD Digital Screen. -Large Lcd Display With Backlight: Easy to read large display. The large display letter makes it more easy to read. - Memory Function: Memory storage with date and time stamp allows you to review the last 90 readings with a touch of a button. - Fast Reading: Less than 1 minute response. - Caution: Battery are not included. - Warm Tip: Dear buyer, Due to lighting effect,monitor's brightness,manual measurement and etc, there could be some slight differences in the color and size between the photo and the actual item. sincerely hope that you can understand! Thank you! Package content (arm belt & sphygmometer) 1 x Sphygmomanometer (Without Battery) with voice or without voice 1 x Compression Belt 1 x storage bag 1 x English user manual 1 x color box Package content(Only arm belt) 1 x arm belt