No Battery needed: USB Charging Bluetooth Scale Data captured by the app, which can be shared with your family members App Body Fat Scale: Measure: Weight, Muscle, Fat ratio with History. Can measure up to 24 physical data measurements Speed: Fast Measurements within 3 Secs Share and join with eight members in your family Applicable model: IOS 8.0 and above Android 4.3 and above Bluetooth 4.0 and above Product features: Tempered Glass Scaled: up to 180kg ABS plastic base: safe and stable Charging port: Android hole universal Android cable Size: 26 26cm Charging Time: 2-3 hour Ultra-long Battery Life: Up to 250 days in sleep mode Any issues do not hesitate to contact us via Shop Chat