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-large 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:Receiver Support frequency range:50K-250M, 400M-2G. Supported modes are:USB, LSB, AM, NFM, WFM, CW, Colour:Black Material:Metal Package Contents: 1 * Receiver 1 * Usb Cable 1 * 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.