The Soundcore Liberty 4 Pro noise-cancelling earbuds incorporate 7 specialized sensors—6 sound sensors and 1 barometric pressure sensor—to capture noise from all angles and deliver 3x stronger noise reduction for travel environments. Featuring an integrated touch bar and display directly on the case, users can fine-tune noise-cancelling levels with a simple swipe. The system incorporates 6 microphones with AI clear call tech and utilizes a 5C battery that charges 2x faster than previous generations: a 5-minute recharge yields 4 hours of playtime. Total battery life reaches up to 10 hours per charge and 40 hours with the case.