MOMENTUM 4 WirelessThe Sennheiser MOMENTUM 4 Wireless delivers premium sound quality and comfort for everyday listening. With adaptive noise cancellation, customizable sound options, and up to 60 hours of battery life, these over ear headphones are designed to keep you immersed in your music, calls, and media without distraction. Features Sennheiser Signature Sound with deep, detailed audio quality and crisp clarity Adaptive Noise Cancellation (ANC) to block unwanted