Built-In 3000ma Lithium Battery Bass Diaphragm Cavity Speaker The Telescopic Antenna Is Relatively Fragile, Please Do Not Break It By Force. 0.6db Noise Figure, Sma Type Antenna Frequency Range: 50khz-200mhz, 400mhz-2ghz Demodulation Mode: Am, Ssb, Nfm, Wfm, Cw Rf Ic: Msi001 Mcu:Stm32h743 Working Current: 300ma Sensitivity: 0.3u (At 200mhz) Screen: 3.5-Inch Isp Touch Screen Dynamic Blocking Range: About 85db Screen Display Bandwidth: 160khz Scalable Power Supply Mode: Built-In Battery Power Supply And Usb Power Supply Motherboard: Four-Layer Pcb Process Antenna: Sma Type Antenna Socket Screen Backlight: Controllable Ultra High Frequency Uhf Band: Supported Iq Transmission: Supports Four Layers Note: Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Will Not Affect The Use Colour:red/Blue Material:PCB Package Contents: 1 x Radio 1 x SMA Antenna 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.