WiFi Bluetooth Smart Body Fat Scale LED Digital Weight Scale. Features: - Track your weight trend. View lines of each measurement in the APP by clicking the corresponding parameters, which helps you understand progress over time. -?The Bluetooth of mobile phone is connected to the body fat scale for measurement, and the data can be viewed online in real time through the sports health app. - Not only is it strong and durable, but it also resists shock and high pressure. - Sensitive electrode, More durable. - The design pays attention to detail, the large rounded corners are safe and will not be injured, the four axis design is steady, and it is easy to adapt to various grounds without rolling over. Specifications: Battery: 4xAAA Battery(Not Included). Size: 30x30x2.5cm/12x12x0.98in. Package Included: 1 x Body Fat Scale�ꡧIncluded Batteris��? 1 x?Waist Measure Ruler