6mm Drivers for Immersive Audio Experience.Note : If the size of the earbud tips does not match the size of your ear canals or the headset is not worn properly in your ears, you may not obtain the correct sound qualities or call performance. Change the earbud tips to ones that fit more snugly in your ears Bluetooth V5.0 Support Wireless Stereo Sound Upto 12H Playback (at 50% Volume) Voice Assistant Support