... support 32 GB SD card, 4.Record/Replay/Delete/Time Setting. 4 Channel Recorder with Anti-theft & Time Setting ... down after two minutes.18.Slice Switch — when in vehicle monitoring mode,press slice switch, it will ... to Navigation Audio Mode. 19.Overtake-light—When in Navigation Audio Mode,press trigger overtake-light,it ... triggered over 1 second or more than twice in 1 second,it will be regarded as invalid ...