Smart Body Scale Bluetooth Electronic Home Rechargeable Accurate Digital Weight Fat Scale Item Type: Body Scale Material: Tempered Glass Battery: 2pcs AAA batteries (Not included) Weighing Range: 3 ‑ 180 kg / 6.6 ‑ 396.8lb(approx.) Display Mode: Backlight large screen Applicable Models: for IOS7.0 and above, for Android 4.3 and above, Bluetooth 4.0 and above There are several ways to download the Health Smart Scale APP: 1. Scan the QR code to download 2. Application store download Usage: 1. Download the APP 2. The APP installed 3. Open the APP registration information 4. Connect to your phone After the completion of the information, click "confirm binding", according to the prompt to open the wireless connection device, people can be on the smart scale, such as the smart scale lock the current weight value, mobile phone APP terminal will appear another interface. 5. Enter the APP function interface, and the data will be automatically synchronized after measurement.