The Denon Noise Cancelling Earbuds are true wireless in ear headphones designed to deliver superior sound quality and effective noise cancellation. Featuring Active Noise Cancelling (ANC) technology they allow users to silence background noise or switch to Transparency Mode to hear ambient sounds when necessary. Hand tuned by Denon's Sound Master these earbuds offer powerful detailed sound with strong dynamics and crystal clear vocals. They provide up to six hours of wireless listening on a single charge with the included charging case extending total playback time to 24 hours. Designed for comfort and security the earbuds come with silicone ear tips in three sizes to ensure a perfect fit. With an IPX4 rating they are sweat and water resistant making them suitable for workouts and use in the rain. The built in microphone enables clear voice calls and touch controls allow easy management of music playback and calls.