Pkman&trade; Wireless Noise Cancelling Bluetooth Stereo Sport Bluetooth Headphones/Headset/ Earphones for iPhone 6, 6 Plus, 5 5c 5s 4 and Android Devices (Black+Red) Bluetooth 4.1 and APT-X tech,transfer a high-fidelity stereo music and clear speech via Noise Reduction Strong Wireless Signal: you can enjoy skip-free music in a 10-meter working distance Compatible with the iPhone,samsung,IOS,Andriod and other bluetooth-enabled devices Up to 4.5 hours of Talking/Playing Time,standby up to 180 hours With human engineering design,provide a comfortable wearing experience when doing sports