Antenna Interface: Standard SMA Female Gold-Plated Connector, Automatic Switching Between 50 And High-Impedance Input Modes. 50Mhz, Use High-Impedance Input, Suitable For Rod Antenna Listening To Long Wave, Medium Wave, Short Wave Programs; 50mhz, Use 50 Impedance Input. Headphone Interface: 3.5mm Headphone Interface For Stereo Audio Output. Standby Button: Short Press To Pause The Screen When The Phone Is On, And Then Press Again To Turn On The Screen;Press And Hold To Enter Standby Mode When The Phone Is Powered On, And Then Press And Hold To Exit Standby Mode. Charging Indicator Light: The Red Light Turns On During Charging, And The Green Light Turns On When Charging Is Completed. Type-: Charging And Usb Signaling Functions, Connect The Machine To The Computer And Use It With Hdsdr Software. Touch Screen Control Area: Volume Control Rotary Encoder: Set Volume, Attenuation, Audio Filter And Other Parameters. Frequency Control Rotary Encoder: Set Parameters Such As Frequency Value, Step Value, Etc. Function: The Malachite Receiver Is Built According To The Sdr Software-Defined Radio Principle. Based On This Relatively Common Hardware Platform, Different Communications Are Achieved By Loading Different Software. Cnc Aluminum Shell Design, Anodized, High-End And Classy; Description: 1. Frequency Range: 10Khz~250Mhz, 400Mhz~2Ghz 2. Spectrum Width: 160Khz, 80Khz, 40Khz 3. Modulation Type: AM, SSB, .CW.NFM, WFM (Stereo Rds) 4. Sensitivity: 0.3UV Up To 1Ghz 5. Dynamic Range: 82Db 6. Antenna Interface: Single Antenna Port Design, Standard Sma Female Gold-Plated Connector, 50 And High Resistance Input Mode Automatic Switching, Built-In Rf Preamplifier And 0-30db Programmable Rf Attenuation Device; 7. Battery Capacity: Built-In 3.7V 5000mAh Ultra- Capacity Lithium Battery, With A Battery Life Of About 12 Hours At Normal Volume. 8. Software Dsp Functions: Variable Filter Width, Adaptive Squelch (), Threshold Squelch, Noise Canceller (), Automatic Gain Control (), Automatic Filter (), Rds Support Stereo FM, Analog Stereo, Equalizer; 9. Hardware Features: Stm32h743arm CPU At 480Mhz.Msio01 Multi-Band And Multi-Mode Tuner, 3.5-Inch 480*320 LCD Display, Capacitive Touch Screen, Two Mechanical Encoders; 10. USB Connected To A Personal Computer Can Transmit , IQ Audio; 11. Body Size: About 162 x 74 x 29mm (Length*Width*Height) (Excluding Protrusions) Material: ABS colour: Package Contents: 1 x Antenna 1 x Machine Protection Bag 1 x Type-C Data Cable 1 x Thick Velvet Bag 1 x Radio 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.