1. Compatible with most iOS and Android devices with multi-functions including make and receive call text message for Android mp3;</br>2. Simple pairing with your smartphone with the help of Bluetooth or NFC Connection. Magnetic charging to make your devices more safe in which someone is tripping over the charging cablebut they will be separated rapidly to avoid damaging to devices;</br>3. Smart notifications push to keep you up-to-date with alerts for incoming calls text messages social media like Facebook & Twitter and other apps.</br>4. Heart rate monitored calories burned distance traveled steps taken and speed measured to help you track your fitness progress.</br>5. First-grade ABS material and exclusive protective layer for TFT LCD to protect your device's screen from scratches and ensures a durable design.</br></br>Product Description</br></br><br><b>Note:</b>You should open the rear case to inset the micro SIM & SD card( Screwdriver included).Please don't take out the battery to avoid difficult assemblely.<br> <br><b>Important Features</b><br> <br><b>Requirement for phone model and Bluetooth ve