Seamless Connectivity & Smart Features: Sennheiser MOMENTUM 4 earbuds wireless Bluetooth 5.4 with multipoint connectivity and customizable touch controls ensure effortless pairing and intuitive operation and wireless convenience Adaptive Noise Cancellation & Transparency Mode: The wireless Bluetooth earbuds block distractions with optimized ANC and help you stay aware of your surroundings with low-noise Transparency Mode All-Day Comfort & Secure Fit: The true wireless earbuds have an ergonomic design with extra soft silicone ear tips for long-lasting comfort during extended listening sessions Long-Lasting Battery & Charging Case: The ear buds have up to 30 hours of playback, extended with the included charging case, long battery life for uninterrupted music and calls on the go LE Audio & Auracast Ready: The wireless earbuds noise cancelling let you future-proof your listening with support for LE Audio and Auracast for enhanced audio streaming experiences and music listening Complete Premium Package: Includes earbuds wireless bluetooth, charging case, USB-C cable, and additional ear tips for a tailored fit and high-quality audio Seamless Connectivity with Sennheiser BTD 700: The MTW4 wireless ear buds pair effortlessly with the BTD 700 USB dongle, ensuring a stable, high-quality wireless audio connection—ideal for PC or Mac users seeking enhanced performance with minimal latency