Slim & Ergonomic Design with Real Metal</br>Harman Kardon Platinum Sound / Hi-Resolution audio with Balanced Armature unit</br>Long life battery - Talk Time of up to 11 hours?? Music Play Time of up to 10 hours?? Standby Time of up to 17.3 days and Charging Time is Less than 2 hours</br>Dual MEMS mic with advanced noise cancelling solution and Qualcomm apt-XTM HD (24 bit) for Hi-Fi Music</br>Advanced Retractable Wire Management</br></br>Product Description</br></br>Slim & Ergonomic Design with Real Metal Harman Kardon Platinum Sound / Hi-Resolution audio with Balanced Armature unit</br><br/>http://www.amazon.com/gp/product/B01E6K7K02