Flexion KS-901 Kinetic Series Wireless Bluetooth Headphones Noise Cancelling Headphones with Microphone/Running/Gym/Exercise/Sweat Proof for iPhone 6, 6 Plus, 5 5C 5S 4 & Android Our kinetic series defines elegance and functionality, and are equipped with bluetooth 4.0 + EDL in headphones 60% than the wireless competition. Connectivity Technology: Wireless 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