For the MOMENTUM 4 Wireless headphones, what are the key performance and battery details, specifically the transducer size, maximum battery life, and fast-charging capability (listening hours from 10 minutes charge)? Also, confirm if the Sennheiser Smart Control App is available on both iOS and Android platforms.
Navigate to the MOMENTUM 4 Wireless product page on sennheiser-hearing.com. Locate and identify the transducer size, maximum battery life, and fast-charging capability on the product page. Scroll to the bottom of the page and click on the 'Support' link in the footer. On the Support page, locate the 'Sennheiser Smart Control App' section. Confirm the availability of the app on both iOS and Android platforms by looking for corresponding app store links.
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 is 6 hours listening in just 10 minutes. Confirm that the Sennheiser Smart Control App is available on both iOS and Android platforms.