Smart scale with 18 essential metrics. •Track 18 essential body metrics: weight, BMI, fat, body fat weight, skeletal muscle mass percentage, skeletal muscle weight, muscle, muscle weight, water, water weight, visceral fat, bone mass, metabolism, protein, obesity degree, body age, fat-free weight, actual age, height. •With a high-precision sensor, tempered glass panel, it can detect up to 50g of difference, professional data analysis, high-definition LED night vision display, and an indoor temperature display. •It has a Bluetooth connection and an app that provides multiple data and is easy to use. It can be linked with up to 8 family members. Non-slip base to prevent product movement. •Contains: scale x1, USB charging cable type Cx1, instruction manual x1. Capacity: 3-180kg Division: 1D=100g/0.2 lb Units: KG, LB Voltage: 4.5V Recommended operating temperature: 5-35ºC Storage temperature: -10-60ºC CE and RoHS certified. ABS, tempered glass, metal alloy. For the smart scale to function properly and to access all the displayed metrics, you must download a free app for synchronization. To do this: • Scan the QR code included in the instruction manual and download the app. •You can also download the “OK OK International” app directly from the Google Play Store (Android) or App Store (iOS). •Once downloaded and installed, open it and accept all requested permissions; sync the smart scale with your mobile phone via Bluetooth through the app.