HUAWEI FreeBuds 4 takes Open-fit Active Noise Cancellation to new heights, incorporating all-new adaptive ear-matching technology for even greater audio immersion. The earbuds are ergonomically moulded to precisely fit your ear, for a shape that feels right every time. And at just 4.1 g2 each, they\\\'ll sit naturally and comfortably in your ears, offering an almost weightless way to deeply enjoy music. Open-fit Active Noise Cancellation 2.01 Air-like Comfort2 High-Resolution Sound Swipe Controls Intelligent Audio Connection