--Upgraded LED power display: Intuitive understanding of level charging cab and headphones at a glance
--X9 chip upgrade: upgrade 5.1 Bluetooth-compatible chip, automatically start matching
--High-capacity charging station: can be used for earphone/mobile phone charging box as a mobile phone holder
--9D Subwoofer: Enjoy HIFI scenes and enioy immersive 9D stereo surround sound effects
--cvc8.0 intelligent noise reduction: enjoy high-definition call effect, not affected by environmental noise