Features: Sport type back-hang on-ear design. Mini foldable pocket size, easy to carry. Soft comfortable sponge earmuffs for long wear. Meet the ergonomics design, perfect construction. High fidelity and stereo model. Intelligent built-in microphone and speaker. Equipped with high-grade CSR Bluetooth V3.0 Chipset. Low power consumption and support hands-free function. Equipped with a micro USB charging port and can be easily charged by computer or any other device with USB interface. Easily control adjusting the volume, previous/next songs, answering / rejecting / ending an incoming call and redialing the last number. Practicably engineered for sports such as, running, jogging, or doing handstand push-ups and the headphone will not fall off. Buy this product and Get 8% Off for High Fidelity (Hi-Fi) Sound Foldable Wireless Sport Stereo Bluetooth 3.0 Headphone Earphone Running Headset with MIC for Smartphones Tablets PC and All Other Bluetooth-enabled Devices.