GoPro RMRU3 User Manual page 5

Features: radio
2.4 GHz BLE 5.0
Transmit power MAX 7dBm
Operation Frequency: 2402-2480MHz
MAX PK Antenna Gain: 0.64 dBi
Software version: V0.5
Hardware version: EVT1
℃
The operation temperature is -10~35
Input Rated Voltage: 3.85Vdc