For the MOMENTUM 4 Wireless headphones, find the transducer size, maximum battery life, and the exact fast-charging capability (listening hours from a 10-minute charge). Then, confirm if the Sennheiser Smart Control App is available for both iOS and Android, and state where to find the app download links.
Navigate to the MOMENTUM 4 Wireless product page on sennheiser-hearing.com. Locate and extract the transducer size from the 'Features' section. Locate and extract the maximum battery life from the 'Features' section. Search the product page thoroughly for the specific fast-charging capability (listening hours from 10 minutes charge). This may be in a 'Features', 'Specifications', or 'Technical Data' section. Navigate to the 'Support' page (or a dedicated 'Smart Control App' page if directly linked from the product page). On the relevant app or support page, confirm the availability of the Sennheiser Smart Control App for both iOS and Android. Identify and state the location of the app download links (e.g., App Store, Google Play).
State the transducer size for the MOMENTUM 4 Wireless headphones is 42mm. State the maximum battery life is up to 60 hours. State the fast-charging capability provides 6 hours listening in just 10 minutes. Confirm that the Sennheiser Smart Control App is available on both iOS and Android platforms. State that the app download links (e.g., App Store, Google Play) are found within the 'Sennheiser Smart Control App' section on the Support page (or a similar dedicated app page).