The Sennheiser Momentum True Wireless 2 in white are closed-back earbuds designed for those who value high-fidelity audio in a portable format. They utilize 7mm dynamic drivers that deliver a wide frequency response from 5 Hz to 21,000 Hz, ensuring deep bass and clear highs with very low harmonic distortion. To help you focus on your music in noisy environments, these earphones feature active noise cancellation and support high-quality audio codecs including SBC, AAC, and aptX via Bluetooth 5.1. These earbuds are built for daily reliability with an IPX4 splash-resistant rating, making them suitable for workouts or light rain. You can enjoy up to 7 hours of playback on a single charge, which extends to a total of 28 hours when using the USB-C charging case. The touch controls are fully customizable through the Sennheiser Smart Control App, and a convenient Smart Pause feature automatically stops your audio when an earbud is removed. To ensure a comfortable fit for different ear shapes, the package includes four sets of silicone adapters in sizes XS to L. Two integrated microphones handle voice calls within a range of 100 Hz to 10,000 Hz, providing a practical solution for hands-free communication during your commute or workday.