TELEPHONY, Headphones and Earphones, Headphones for telephony, Huawei Freebuds 4 Ceramic White Wired specs Typology Wireless headphones Built-in microphone Yes Remote control Call and volume / music control Noise canceling Yes Connectors Bluetooth Power supply Rechargeable battery Primary color WhiteComfortably Better MusicHUAWEI FreeBuds 4 takes Open-fit Active Noise Cancellation to new heights, incorporating all-new adaptive ear-matching technology for even greater audio immersion. The open-fit design allows air pressure to stay equalised, while ensuring important environmental sounds can still be heard — for a safer, more comfortable wearing experience even after long hours of use.In Tune with YouEvery ear is different. That's why HUAWEI FreeBuds 4 uses adaptive ear-matching technology to detect your unique in-ear shape and how you wear the earbuds, then intelligently selects from a variety of noise cancellation modes to achieve optimal low-frequency sound reduction.A New Sphere of ListeningThe perfect-circle charging case is designed to fit right in your palm. And now even smaller and lighter, it slips seamlessly into your pocket, for an easier way to take your music with you.Sounder FitThe earbuds are ergonomically moulded to precisely fit your ear, for a shape that feels right every time. And at just 4.1 g each, they'll sit naturally and comfortably in your ears, offering an almost weightless way to deeply enjoy music.Hits the High NotesThe large 14.3 mm LCP dynamic.