ROKiT iO Pro 3D November 15, 2021 16:40 Updated Click here to view the iO Pro 3D User Manual. Related articles How to insert the battery? ROKiT iO 3D My iO Pro 3D device restarts constantly, what should I do? How can I perform a factory reset on my phone? How can I answer a call? Comments 0 comments Article is closed for comments.