[Adaptive Active Noise Cancellation] Every ear is different. The W320TN uses adpative ear-matching technology to detect your unique in-ear shape and how you wear the earbuds, then generate highly tailored noise reduction parameters so that you can enjoy your favorite music and feel safe when you are out in the world. [Ultimate Music Experience] The W320TN offers Hi-Res Audio wireless support with LDAC certification and features Edifier's latest 13mm multi-layer composite diaphragm unit that helps achieve extraordinary sound quality. [6 Mics And AI Algorithm for Perfect Call] With 6 microphones and an AI algorithum that can autimatically adjust the reduction level based on the ambient noise level, the W320TN can accurately distinguish between environmental noise and human voice. Enjoy perfect clarity whenever you're on a call. [Dual Connections] The W320TN can be paired with two Bluetooth devices simultaneously. You can effortlessly switch between watching a movie on your laptop and answering a phone call within seconds. [Open-Fit Design] This ergonomic design ensures more comfortable wearing experience even after long hour of use. [In Ear Detection] Built-in infrared wearing detection sensor intelligently senses the wearing status. The music will play when the earbuds are put on and will pause when the earbuds are taken off.