Simply tap and hold the right earbud for 2 seconds to switch between ANC On and Transparency Mode. The earbuds also come with a transparency mode to hear your surroundings clearly without taking off your earbuds or pausing the music. Enjoy your music or calls without any distractions, whether you're on a train, flight, in the office, or outdoors. With the ability to cancel up to 90% of ambient noises, these ear buds deliver a premium audio experience, no matter where you are. - The truke Buds Vibe ANC offers Dual Noise Cancellation with up to 35dB Active Noise Cancellation (ANC) and Quad Mic Environmental Noise Cancellation.