Multi-segment, dual-display, dual-guard, to meet the needs of different users in different environments. RX frequency range is 65-108 (FM), 108-136 MHz (am), VHF 136.000-174.000, UHF 400.000-480.000 MHz. TX frequency range VHF 144.000-148.000, UHF 430.000-440.000mhz. In digital mode, it supports the functions of APRS, roaming, total recall, digital encryption, digital alarm (working alone) and short message. Analog mode, one-button frequency, two-tone, five-tone, DTMF (dual-tone multi-frequency) and BDC1200 signaling selective call. Digital monitoring, mixed digital and analog channels and frequency scanning, satellite positioning, FM radio, and aviation band reception. ·TDMA double time slot technology, double user capacity. Through dual-capacity mode communication, two groups of calls can be carried out at the same time at one frequency point, which saves more frequency resources. Adopt AMBE+2 speech encoder, the speech is clear and loud, and there is no noise interference. This digital walkie-talkie adopts advanced AMBE+2TM voice processing technology, which realizes high sound quality. ·DMR's rich calling methods and enhanced functions. Single call, group call, full call, one-button call, call prompt, intercom check, remote monitoring, remote shooting and resurrection. Text message function Chinese and English language support, supporting 128-character short message sending and receiving, text editing and draft box functions. Support M-SMS, H-SMS and D-SMS short message formats. Digital-analog compatibility and smooth transition Support DMR digital and analog communication modes to ensure the smooth transition from original analog products to digital products. 2.0 ""screen display and full keyboard design to meet the needs of manual channel editing. Support channel/frequency mode, and can manually program interphone. User-defined setting of side keys does not change the user's operating habits of this machine.