A shield has been added to the Si4732 receiver to suppress electromagnetic interference, enhancing signal clarity. The Hi-Z circuit has been relocated to the front of the antenna path, utilizing a stable VCC_RADIO power supply to maintain signal resonance and minimize noise. Wired headphones can now be used as an FM antenna, ideal for environments with strong FM signals and long headphone cables for optimal performance. The left and right audio channels have been swapped, with retuned amplifier and speaker parameters to improve overall sound quality. The device features a 1.9-inch screen with a resolution of 170 * 320, and adjustable brightness from 32 to 255 levels for user convenience. This versatile receiver operates in FM, AM, LSB, and USB modes, covering a wide frequency range from LW, MW, SW (150kHz - 30MHz) to VHF (64-108MHz). It is powered by an 800mAh battery and features a TYPE-C charging port (not compatible with fast chargers) and a 3.5mm three-way stereo audio port. The SMA-KE antenna port allows for easy antenna connection. Color: Black Material: ABS+PETG Package Contents: 1 * Radio 1 * Telescopic Antenna 1 * Circular Antenna 1 * Bracket