If you need an electronic English user manual, please contact me. Main features: Built-in two sets of communication movements to realize dual-segment simultaneous reception of (V / V, U / U, U / V) signals Relay difference function (U to V or V to U) CT voice scrambling encryption Folding U / V full section antenna Dynamic microphone selection FM radio reception Auto scan function 128 channel storage PTT voice control switch. Speaker shielding mode Personalized display mode at boot High and low H / L level power setting Main and auxiliary (A / B) band shortcut switching key Full dot matrix LCD 4 segment display. Intelligent low power consumption power-saving mode, to achieve ultra-long standby.