The motherboard adopts a well-designed four-layer immersion gold motherboard with ultra-low noise.The sound quality of the speaker comes with a bass diaphragm, the bass is thick, the treble is clear, and the sound quality is acceptable for comparison.The measured standby current of the host is only 290uA, and the super- battery lasts no less than 8 hours.One-piece CNC aluminum alloy knob, using EC11 encoder, the paragraph is crisp and easy to operate.Featured 3.5-inch touch screen, colorful. The touch IC is not FT6206, which is sensitive to touch and has the lowest touch interference of its kind.Type:ReceiverSupport frequency range:50K-250M, 400M-2G.Supported modes are:USB, LSB, AM, NFM, WFM, CW, Colour:BlackMaterial:MetalPackage Contents:1 * Receiver1 * Usb Cable1 * AntennaOnly 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.