Never miss a beat with Sennheiser�s ACCENTUM Wireless Headphones in Black. These dynamic headphones include Bluetooth connectivity for a wireless experience while the lithium ion battery is easily rechargeable via the detachable USB-C charging cable. With up to 50 hours of battery life, enjoy your moment with active noise cancelling technology that filters out ambient noises. For all-day comfort, these headphones feature a lightweight and ergonomic design. Immerse yourself in music with these wireless headphones by Sennheiser | Sennheiser ACCENTUM Wireless Headphones in Black