Features: 1) Wide-band, high performance professional FM transceiver 2) Working frequency: 136 - 174MHz, 350 - 390MHz, 400 - 470MHz 3) Unique design, wide-band receiving circuit, sensitivity fluctuates: ≤1dB 4) Wide-band module circuit, module channel deviation: ≤0.5kHz 5) Adopt high efficiency MOS-FET power pipe, power is more than 4W (transmitting current is less than 1,300mA) 6) Built-in VOX function, hands-free talking, 16 steps can be chosen for different surroundings 7) Prior scanning and common scanning function, in-time answer for multi-channel 8) Built-in CTCSS code / decode 9) High capacity Li-ion battery (1,100mAh), working time for 12h 10) Compatible with the American Military MIL-STD10 standards and the European IP54 / IP55 standards