Features: 1. Accurate measurement: This product measures very accurately. This product measures very accurately. 2. LCD digital display: This product uses a large-screen digital display, the display is very clear, and the measurement results are clear at a glance. 3. Portable: This product is small in size and light in weight, very convenient to carry around. 4. No operation automatic shutdown: This product has an automatic shutdown function, this product can save power. 5. Good quality: This product is made of high-quality materials, exquisite workmanship, very good quality and long service life. This product is accurate in measurement, durable in material, accurate in measurement, and suitable for family health use. Specifications: Size: 11.2 cm*10.2 cm*16.2 cm Material: ABS Model: ZK-B871 Weight: 500g Battery: 300mAh (included) Voice broadcast: none Package Included: 1 pc*Hematomanometer