User Guide - R40 GPS Car DVR (KBA12026) KAISER BAAS Support June 06, 2017 00:13 Follow Quick Start Guide Download Related articles How do I switch km/h to MPH on my R40 ? What type of SD cards can I use? User Guide - R50 GPS Car DVR (KBA12027) How do I change the time and date settings? How much video can I store on my SD card? Comments 0 comments Please sign in to leave a comment.