JKTF&reg; Wireless Bluetooth Headphones 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 (Blue) JKTF 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, and a 10-meter working distance, our headphones will let you enjoy music through a variety of activities. Universal device compatibility: the JKTFSeries 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. Package contents: JKTF Wireless Headphones, user manual, charging cable, and custom earbuds.