Optional module for the reduction of high-frequency vibrations generated by the motorcycle, offers greater protection to your smartphone. It mounts between the handlebar mount and the phone holder. Included accessories: 1 anti-vibration module and mounting screws. It is not compatible with the holders: SMMOTOCRAB - SMSMART65 - SMIPHONE11 - SMIPHONE11PRO - SMIPHONE11PROMAX - SMIPHONESE - SMIPHONEX - SMIPHONEXSMAX - SMMASTERPRO - SMMASTER