Gold Q8 Wireless Portable Bluetooth V4.0 Universal Headset Headphone Noise Cancelling Headphones w/ Microphone [ Sports / Running / Gym / Exercise/ Sweatproof ] Wireless Bluetooth Earbuds Headset Earphones for iPhone 6, 6 Plus, 5 5c 5s 4 and Android Fully exercise-proof: with functional user interface, earpiece design, and a 25-meter working distance, our headphones will let you enjoy music through a variety of activities. Universal device compatibility: the Kinetic Series Headphones are compatible with most Bluetooth-enabled phones, and reduce external sound. Simple-to-use: control all functions of your music (volume, sound, song selection) and calls from your phone via our simple-to-use user interface on the headphones themselves. The round button is a Multifunction key, dual touch can redial, press button can auto reject a call Good for driving or sporting:Dual,high-performance mics deliver superb noise cancellation,so calls come in crystal clear.You just need to press on button.