Bluetooth headphone , Di.zone(TM)Wireless Bluetooth headphone w/ Microphone [ Gym / Running / Exercise / Sports / Sweatproof ] for All Kinds Of Electronic Products--black Bluetooth 4.0 Technology that provides crystal clear highs and high-fidelity sound. Connect the headphone to any bluetooth enabled device from a distance of 10M/33ft. Mic in the ear cup let you take calls without removing your headphones.English coming call number&coming call Voice command: yes or no;Connect two phones simultaneously Easy Access: The simple user interface on one of the earphones allows you adjust the volume, play/pause, select songs and answer/hang up calls completely effortlessly. Hi-Fi STEREO SOUND: Adopted the CSR Bluetooth Stereo Chips which is the newest technology, strengthen the signal 2 times. The apt-x code provides stereo and high-fidelity sound. Enjoy music in your world. Partial products have been upgraded with our Brand Di.zone LOGO , please rest assured the quality of the products are all guaranteed