AWEI A920BL Bluetooth 4.0 Wireless Sport Exercise Stereo Noise Reduction Earbuds Build-in Microphone Earphone For Apple iPhone Galaxy S6 S5 Android Smartphones (Black) HIGH DEFINITION STEREO HEADSET: High definition stereo music play noise isolating earbud bring you to a pure touching music world. FASHION WIRELESS HEADPHONES: CVC6.0 highest version of Bluetooth intelligent noise isolation technology,HD noise isolation microphone. EASY TO USE: Magnet attched design, stick 2 ear-plugs together when they are standby, like a necklace prevent cable tangles. BETTWER NOICE REDUCTION: Built-in microphone with noise reduction, intellegently recognize the noise and sound, clear talking experience,Be able to connect 2 devices at the same time. HIGHLY COMPATIBLE: Bluetooth 4.0, which compatible with IOS iPhone or Android smartphones with clear and mellow music play.Sweat-proof function let you enjoy music and call while doing sport without worries.