13.8V, max 3A output allows you to use TRX IC-705 with 10W output power
Universal - use any USB-C power source with 15V voltage profile (Apple divider 3, BC1.2 SDP, CDP and DCP detection)
LED indication of the output voltage for detecting the correct PD source
GREEN - the output voltage is OK, between 12 and 14.3V
RED - voltage is out of range - USB-C power delivery probably does not support the 15V/3A profile
filtering of the supply voltage against interference TRX IC-705
charging the internal battery from a USB-C PD power supply