The Clarion MF2 app allows you to control all functions of your Clarion radio from your iOS device through the Clarion MF2 Marine Wi-Fi Module. MF2 Feature List: - Clarion Radio App Remote Control - 2 lines of text for info such as album/artist/song name, radio station frequency, etc. - 100-ft Maximum Operating Range - Smart Phone and Tablet Compatibility - Meets or Exceeds ASTM B117 - Salt/Fog Exposure (module) - Compatible with: CMS2, CMD6, CMD8, CMS5, M303, M502, M505 and M606. Please visit Clarion's website for more information. Note: The full functionality of the app requires a Clarion MF2 Marine Wi-Fi Module connected to a compatible Clarion radio.