What information Could I get from the OLED screen ? Hollyland Tech December 08, 2020 12:08 Updated Device ID Signal Strength Fan Status Battery Voltage Frequency Channel Video Format Related articles Is there any battery indication? What are the differences between the STANDARD and ENHANCED version of MARS 300 PRO? How to install the transmitter and receiver to get the best performation ? Why there is no video output when recording 4K ? How to choose different fan modes? Comments 0 comments Article is closed for comments.