GBTIGER Wireless Bluetooth 4.0 Sports Stereo Earphone Sport Exercise Earbuds Noise Reduction Earphone with Mic For Apple iPhone Android Smartphones Galaxy S6 S5(Black-A920BL) Highly compatible bluetooth V4.0, which compatible with IOS iPhone or Android smartphones with clear and mellow music play. Sport exercise headphone, to free your hands, enjoying music and other audio when doing exercises! High definition stereo music play, noise isolating earbud, bring you to a pure, touching music world. Built-in microphone with noise reduction, intellegently recognize the noise and sound, clear talking experience. Convenient to answer a call when taking exercises or another activities. Magnet attched design, stick 2 ear-plugs together when they are standby, like a necklace, prevent cable tangles and fall down from neck. Function: Song switching, Multi connection function, Bluetooth, Voice control, Answering phone, etc.