Specification: Item Type: Body Scale Material: Tempered Glass Size: Approx. 26 x 26cm / 10.24 x 10.24in Battery: 3 x AAA batteries (Not Included) Maximum Load Bearing: Approx. 180 kg / 396.8lb Function: Measure 17 body data including obesity, body mass index, BMI, body fat percentage, fat weight, skeletal muscle percentage, basal metabolism, bone mass, protein, skeletal muscle weight, muscle percentage, muscle weight, visceral fat, body moisture, water content, fat loss weight and body age. How To Use: 1. Battery installation (not included) : The new scale needs to install batteries for the first time, and pay attention to the battery placement in the ± direction 2. Mobile APP installation: A. Turn on your phone B. Mobile phone connection (Wifi, 3G or 4G is recommended) C. Download and install the APP or search the APP name "OKOK" to download the APP. 3. Bind devices, register and improve your information. 4. Data Measurement: A. When weighing, to avoid affecting the accuracy of weighing, please place the scale on hard level surfaces and do not place the product on carpet or soft ground. And make sure there is no foreign matter in the bottom before weighing. B. During the measurement, please step on the scale barefoot and contact the sensing metal sheet area well. As the amount of fat needs to be calculated, do not leave the scale if the measurement time is more than 5 seconds. 5. View the measurement results. Package List: 1 x Body Scale 1 x Manual