Big LCD displays frequency and all kinds of information. Frequency Tuning Step 100Hz? 1KHz? 10KHz? 100KHz? 1MHz. ±1.5KHz CLARLFILER Adjustment. RF PWR Adjustment, SCAN Function, Programmable RB Function, NB/ANL Function, DW DUAL-WATCH Function, Offset Frequency Function. BEEP Voice Prompt, +10KHZ Function, SIG? PWR? SWR Function, TOT function, HI-CUT Function, EMG Channel Function, SWR Protection. Power Supply Voltage Protection. Six(6) Groups Memory Channel. Model Name Customized Function. CTCSS/DCS Code, VOX funtion, TX and RX Reduction. Compatible with electronic and dynamic MIC type. This is upgraded AT-5555N II 10 meter mobile radio, through Programming jack on the back side of the radio could be programmed the frequency by PC. 28.000-29.700MHz(Programmable). 40channels, programmable in each band. With push-to-talk /UP/DN and coiled cord. 250(L) x200(W) x 60(H). SSB: 3rd order, more than -25dB; 5th order, more than -35dB. 45dB adjustable for optimum signal reception. Automatic Gain Control(AGC). Less than 10dB change in audio output for inputs from 10 to 100,000 microvolt. Adjustable; threshold less than 1.0? V. 3 watts into 8 ohms. External Speaker(Not Supplied). 8 ohms; disables internal speaker when connected. Mounting Bracket 1 piece. Microphone Hanger 1 piece. Non-slip Mat 2 pieces. Screws for bracket 2 pieces. Pads for bracket 2 pieces. Adjusting screws 2 pieces. Spare Fuses (15A, 250V) 1 pieces, Self-tapping Screws 2 pieces, Pads 2 pieces.