Flytiger Wireless CSR4.0 Bluetooth Earphones Stereo Sport Headphone with Micphone for Smarphone(Blue) Support Various Bluetooth enabled devices, for example mobile phone, PDA, laptops, etc Fully exercise-proof: with functional user interface, earpiece design, and a 10-meter working distance, our headphones will let you enjoy music through a variety of activities Universal device compatibility: compatible with most Bluetooth-enabled phones, and reduce external sound Easily control playing / pausing, adjusting the volume, previous / next songs, answering / rejecting / ending an incoming call and redialing the last number Low power consumption, smart low-battery warning