Featuring a body fat scale integrated with smart Bluetooth techNOlogy, the Everfit Bluetooth Body Fat Scale is compatible with all Android devices, iPhones, iPods and iPads. Download free smart app Airscale to your phone, it allows you to monitor daily health changes easily and clearly. It can store multi-users' health records on 6 parameters; weight, fat, BMI, water, muscle, and bone index. Equipped with 4 large accurate weight sensors for precise body parameters measurements. Features: -Smart Bluetooth techNOlogy.-One-stop health tracking scale.-6 parameters measurements.-Compatible with IOS or Android devices.-Tempered glass platform with 4 accurate weight sensors.-Auto power off design.-Low battery/over-load indication.-Battery operated (NOt included).-Platform material: Tempered glass.-28cm H x 28cm W.-Accessory Type: Bath & Shower.-Finish: Black.-Mounting: Wall Mounted.-Application: Residential Use.-Distressed: NO.Specifications: -Weight division: 100g.-Body fat/water/muscle division: 0.1%.-Bone division: 0.1kg.-Tolerance: 40kg ± 500g; 80Kg ± 800g; 120Kg ± 1000g.-Powered by 2 x 3V CR2032 lithium batteries.Dimensions: -28cm H x 28cm W.-Overall Height - Top to Bottom: 28.-Overall Width - Side to Side: 28.-Overall Depth - Front to Back: 5.-Overall Product Weight: 1.