Bluetooth Earphones, SAVFY Smallest in-Ear Invisible Mini Wireless Bluetooth 4.0 Headset Headphone Earphone with Mic for Running Car iPhone Samusng LG and Most Smartphones, Black SUPER HD SOUND With Advanced Bluetooth 4.0, the headphones ensure high-fidelity stereo music and clear speech within 10 meters. Experience realistic stereo digital quality sound on the go, enjoy natural sound. ERGONOMIC DESIGN Light weight with stylish design for extended comfort. With specially designed ear hooks, you will never worry about the ear buds to be fallen off for a gym or workout. POWERFUL BATTERY Up to 4 hours Music playing and 6 hours Talking time on a full battery charge. Super quick charge time of only 2 hours which lasts up to 150 hours of standby time. PAIR 2 BLUETOOTH DEVICES AT A TIME The Bluetooth headphones for iPhone, Android phones & tablets and other Bluetooth devices can pair with 2 different devices simultaneously! You won't never miss a call while enjoying music. SO EASY TO USE The multi function are all right on one side, making these the most convenient Bluetooth earbuds for running, sports, lifting weights & more! Press the function key until the led flashing red and blue. Find the earphone device named on your Bluetooth device and connect.