Features: 1.PORTABLE RECEIVER: This digital demodulation receiver, based on SDR 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 chip and a long retractable antenna, with excellent signal quality, can receive 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: 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, (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 Style Settings: Green supplement, green line, blue supplement, white line. Spectrum Bandwidth: RF spectrum (192kHz, 128kHz, 64kHz); Audio spectrum (64kHz). Waterfall Area Setting: Waterfall or waveform (amplitude x1 x8 x64) Five items that cannot be by the encoder: A. Battery level display B. Date and time settings C. Station information display: preset station name capability D. Display current widthE. Input (POWER) antenna port POWER display Working Mode: Single sideband CW, AM, SSB (LSB USB), WFM, stereo FM (requires headphones) Step Frequency: 1Hz 10Hz 100Hz 1kHz 10kHz 100kHz 1MHz 10MHz Spectrum Bandwidth: 192kHz, 128kHz, 64kHz, real time spectrum display Antenna Interface: BNC male, impedance 50Ω, maximum input power -20dBm Reference Crystal Oscillator: TCXO 26MHz ±0.5ppm Audio Interface: Support regular 3.5mm headphones or CTIA (US standard) headphone interface Speaker Power: Maximum 3W, multimedia speaker 4Ω Charging Port: USB Type C, 5.0V 2A Current Consumption: About 250mA at 5V Battery Capacity: 5000mAh 3.7V (built in) Usage Time: About 10-12 hours, depending on machine volume and brightness settings Channel Saving: 99 channels can be preset, and the station name, frequency, and alignment method can be preset Color: Black Material: Iron Due to different product batches, the appearance , but it not affect the use Package Contents: 1 x SDR Radio Receiver 1 x Antenna 1 x Data Cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.