1. PORTABLE RECEIVER: This DSP digital demodulation receiver, based on SDR software defined radio architecture, has 192kHz wide spectrum 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: The SDR receiver adopts all aluminum alloy CNC shell, equipped with 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 ReceiverMaterial: Aluminum alloyDisplay Technology: 4.3 inch IPS 800x480 resolution DC dimming high bright LCD screenControl Method: Resistive touch screen, encoderChannel Selection: 1-99Frequency: 100K to 149MHz, minimum step 1HZSpeaker Volume (SPK): 0-35dB, 1dB stepEarphone Volume (EAR): 0-35dB, 1dB stepModulation: CW, LSB, USB, AM, WFM, STE (FM stereo), I QAGC Settings: OFF, SLOW, MID, FASTReference (REF): -99 to 99dB, 1dB stepIF Gain: -12 to 67dB, 1dB step Style Settings: Green supplement, green line, blue supplement, white lineSpectrum Bandwidth: RF spectrum (192kHz, 128kHz, 64kHz); Audio spectrum (64kHz)Waterfall Area Setting: Waterfall or waveform (amplitude x1 x8 x64)Five items that cannot be selected by the encoder:A. Battery displayB. Date and time settingsC. Station information display: preset station name capabilityD. Display current widthE. Input (POWER) antenna