EFFECTIVE BODY COMPOSITION MONITOR Get 12 essential measurements including Weight, BMI, Body Fat percentage, Visceral Fat, Muscle Mass, Bone Mass, Body Water, and more by using the "OKOK" APP.SYNCS TO POPULAR FITNESS APPSThis smart body fat scale and mobile app are easy to use, Download the "OKOK" App via the App Store/Android Store. Works with Bluetooth 4.0 and above, and it can track your progress with charts and graphs, see your trend and compared to achieve your goals. The OKOK app transfer your data to these apps within 1 second. Moreover, one scale can add 8 users, share with your family and friends.HIGHLY ACCURATE AND RELIABLE DATAThe bathroom weight scale employs 4 high sensitivity electrodes, high precision sensors with auto-calibration function and a one-button reset function. The deviation of reading does not exceed 0.2 lb./0.05 kg. The scale can accept a maximum weight of 396lbs/180kg. Easily switch between pounds and kilograms through the "OKOK" app.USB RECHARGEABLEThe BMI scale is equipped with 200 mAh internal lithium-ion batteries, convenient recharges through a USB cord, it can be connected to a computer or socket to complete charging, energy saving and environmental protection, and long service life.HIGH-QUALITY MATERIALSThe dimensions of 11x11x0.8 inches, this digital body scale is made from solid high-quality tempered glass. The smooth surface makes it easy to clean while rounded corners make it safer. LED backlight display makes it easy to view the data.High Visibility LCD display with bright backlight ideal for both daytime and night time use.