HiFo HeartBeat Sports Bluetooth Earphone with Sports App, Heart Rate Monitor, Pedometer, Map/GPS Tracking, Noise Cancelation, Battery Status (Red) SPORTS APP  Sports App Provides Real-time Map and GPS Tracking, Serves as Pedometer, Stores and Synchs Your Offline Activities HEARTRATE MONITORING  Built-in Biometric and G-Sensors Provide Heart Rate Monitoring and Pedometer through the Sports App BATTERY STATUS, VIOCE PROMPT  Compatible with both iOS and Android devices, Music, Phone Call Functions COMFORTABLE FIT  Ergonomically Designed Flexible Ear-hooks Snugly Fit Ear Contour to Ensure Stability and Comfortability SWEATPROOF  IP54, Extended Comfortability and Lightweight Make Them Ideal for any Active Sports