Flexion KS-902 Kinetic Series Wireless Bluetooth Noise Cancelling Headphones with Microphone, Black Our kinetic series defines elegance and functionality, and are equipped with bluetooth 4.0 + EDL in headphones 60% than the wireless competition Fully exercise-proof: with functional user interface, earpiece design The kinetic series headphones are compatible with most bluetooth-enabled phones, and reduce external sound Simple-to-use Package contents: flexion kinetic series wireless headphones, user manual, charging cable, and custom earbuds