With a delicate and elegant design, with its closed acoustics repels ambient noise, the 10 meter range with a 7-hour battery life of 150 hours in standby mode has a microphone with a remote control for answering calls, music and sound adjustment. , These 8.6 mm diameter headphones and strong 16-ohm impedance provide high-definition sound through three-dimensionally compatible fingernails to suit your ear. When the USB cable is fully charged, the USB cable is in the box and the sensitivity Headphones are 107 dB.,fa