Joway&reg; H07 Wireless Bluetooth Headphones Sport Earbuds Headsets for Iphone 6, 6 Plus, 5 5c 5s 4 and Android (Silver) 1:Joway H07 sport bluetooth headset is equipped with Bluetooth 4.0 +CSR8645, with high resolution clear voice.High-fidelity stereo music and clear speech, You can begin enjoying CD quality stereo sound instantly. 2: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. 3:Universal device compatibility: the Joway H07 Series Headphones are compatible with most Bluetooth-enabled phones, and reduce external sound. 4: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 5:Language mode:connect devices first, then change the mode between English and Chinese by pressing two button at same time:The calling key & voice minus key,it will be completely after hear of voice of du.