That depends on which interior kit you currently have! The kit that is eligible at this time to be upgraded to the Smartphone Control Interior Kit would be the Expandable Million Color Pro SMD LED Interior Kit. If you currently have this kit and are interested in upgrading to smartphone control, you can purchase the Smartphone Controlled control box from our website under interior “Add-On Accessories” or by using the link down below.
Million Color LED Interior Control Box with Smartphone Control
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