BPULS Pluse Wireless HIFI Earbuds Bluetooth Headset Double Mode With APP Built in Heart Rate Monitor (Green) SPORTS APP  Sports App Provides Real-time Map and GPS Tracking, Serves as Pedometer, Stores and Synchs Your Offline Activities WIRELESS EARBUDS with HEART MONITOR. Built-in Heart Rate Monitor, manage your running rate and frequency, safer and more scientific way to do exercise. iOS-requirement for APP download from App Store and Play Store. COMFORTABLE FIT  Ergonomically Designed Flexible Ear-hooks Snugly Fit Ear Contour to Ensure Stability and Comfortability EASY CONTROL: Easily answer/end phone calls with in-line microphone and control your music right from the Bluetooth headphones, skip/go back a track completely hands free from your device!