R-07: What are the specifications of the built-in mics? December 08, 2021 05:43 Updated Follow The internal microphones are stereo omnidirectional, high-sensitivity microphones. Related articles R-07: What recording times are possible on the R-07? R-07: What bluetooth devices are compatible? R-07: How to set the date as the file name R-07: What is the maximum size of a single file that can be recorded?