Features: 1.PORTABLE RECEIVER: This DSP digital demodulation receiver, based on SDR software defined radio architecture, has 192kHz wide spect and waterfall display capabilities, combined with 16bit sampling could achieve CW, AM, SSB, FM, WFM demodulation functions. 2.EXCELLENT RECEPTION EFFECT: This full frequency band amateur radio receiver is equipped with powerful DSP chip and a long retractable antenna, with excellent signal quality, can receive various channels without any interference. 3.LCD DISPLAY: 4.3 inch 800x480 resolution high brightness IPS LCD display. 4.COMPATIBLE HEADPHONE: With a compact size of 14x7.4x2.2mm, you can take it anywhere. Supports regular 3.5mm headphones or CTIA (US standard) interface headphones. 5.HIGH CAPACITY BATTERY: Built in 5000mAh 3.7V battery, can be used for about 10 to 12 hours (depending on the volume and brightness settings of the machine). Specification: Item Type: DSP SDR Radio Receiver. Display Technology: 4.3 inch IPS 800x480 resolution DC dimming high bright LCD screen. Control Method: Resistive touch screen, rotary encoder Channel Selection: 1-99. Frequency: 100K to 149MHz, minimum step 1HZ. Speaker Volume (SPK): 0-35dB, 1dB step. Earphone Volume (EAR): 0-35dB, 1dB step. Modulation: CW, LSB, USB, AM, WFM, STE (FM stereo), I Q. AGC Settings: OFF, SLOW, MID, FAST. Reference Level (REF): -99 to 99dB, 1dB step. IF Gain: -12 to 67dB, 1dB step Spectral Style Settings: Green supplement, green line, blue supplement, white line. Spect Bandwidth: RF spect (192kHz, 128kHz, 64kHz) Audio spect (64kHz). Waterfall Area Setting: Waterfall or waveform (amplitude x1 x8 x64) Five items that cannot be selected by the encoder: A. Battery level display B. Date and time settings C. Station information display: preset station name capability D. Display current spectral width E. Input (POWER) antenna port POWER display Working Mode: Single sideband CW, AM, SSB (LSB USB), WFM