Denver Fitband BFH-16Fitness band with Bluetooth 4.0 function & heartrate monitorTrack your activity + your sleep, and get it displayed in the app "DENVER BFH-16"Charge directly via inserting the USB of the unit into a USB portEasy to use, just one button on the bandFree app for Android & iPhonePair with your smartphone via BluetoothCaller ID display & SMS notificationClock & Alarm functionPedometer function: Steps, distance & calories calculationBlood pressure and oxygen indicators - not medical grade0.96? TFT display with a colour screenBuilt-in lithium-ion polymer battery: 80mAh, standby time 7-10 daysIP-67 waterproof