Brand Soundcore Model Name Liberty 4 NC Color Navy BLue Form Factor In Ear Connectivity Technology Wireless Reduce Noise By Up to 98.5%: Liberty 4 NC noise cancelling earbuds have a high sensitivity in-ear sound sensor, an oversized driver, and an innovative noise isolation chamber that cancels up to 98.5% of noise for peaceful travel. Noise Cancelling Adapts to Ears…