HSINI HS310 Bluetooth Wireless Foldable Headset Talk Time / Music Time - 20 Hours Talk Time / Music time will vary by volume level WOW Factor Volume level - Super loud for all you music lovers / Crisp Bass and Treble even at extreme volume Stand By Time - 400 Hours Standby Time High Quality Packaging - Only the highest quality packaging is used to protect and display the mVolt Premium Products Echo & Noise Cancellation Technology - Similar Technology used in the High quality Jawbone OEM Headsets , Cancels even the most extreme noise in the loudest conditions / Echo Reduction Premium Technology Integrated