Display technology: 4.3 inches IPS 800x480 resolution DC dimming bright LCD Control mode: resistive touch screen + rotary encoder Working mode: CW, AM, SSB single sideband (LSB/USB), WFM, FM radio stereo (headphone required) Audio interface: support ordinary 3.5mm earphones or CTIA (US standard) interface earphones Channel storage: 99 channels can be preset, preset station name, station frequency and demodulation mode Basic parameters Frequency range: 100k-149MHz Spectrum bandwidth: 192kHz, 128kHz, 64kHz, real-time spectrum display Charging port: USB Type-C, 5.0V/2A Current consumption: about 250mA @ 5V Battery capacity: 5000mAh/3.7V, 18.5Wh Use time: about 10-12 hours, depending on the machine volume and brightness settings Show list of controls Encoder selectable twelve items 1.Channel selection: 1-99 2.Frequency setting: 100k-149MHz, minimum step 1Hz 3.Speaker volume (SPK): 0~35dB, 1dB step 4.Earphone volume (EAR): 0~35dB, 1dB step 5.Modulation: CW, LSB, USB, AM, WFM, (FM stereo), I/Q 6.AGC setting: OFF, SLOW, MID, FAST 7.Reference level (REF): -99~99dB, 1dB step 8.Backlight brightness (LCD): 1%~99% 9.IF GAIN : -12~67dB, 1dB step 10.Spectrum style setting: green fill, green line, blue fill, white line 11.Spectrum bandwidth setting: RF spectrum (192kHz, 128kHz, 64kHz) and audio spectrum (64kHz) 12.Waterfall Locale: Waterfall or Waveform (x1 / x8 / x64 amplitude) size: 140 x 74 x 22mm Material: ABS+metal colour: black Package Contents: 1 x receiver 1 x antenna 1 x data cable 1 x stylus 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.