Bluedio N2 Bluetooth 4.1 Wireless USB Headphones Stereo with Microphone Handsfree White Want more concentrate and enjoy your exercise? Lets get ready for workouts with new Bluedio N2 Sports Bluetooth Headset! N2 is crafted from its streamlined appearance, superb bass resonance with in-ear earphone, wind noise reduction, sweat-proof, Bluetooth 4.1 and voice command features, to give you superior enjoy on workouts! Mini Portable lightweight Design, Sweat-Proof Built-in Microphone Headsfree Call;Voice Command Built-in Rechargeable Li-ion battery, play up to 4 hours;Bluetooth V4.1 How to Pair?Completely turn off the headphones (press the function button more than 5 secs and light is off).Press the function button more than 5 secs until the LED is flashing Red and Blue, then release button.Now it's in pair mode and you should able to find "N2" or "Bluedio" on your Phone, your can pair it now, enter "0000" as password if required for certain model phones