AM FM MW SW 4-Band Headphone Radio Medium Wave Short Wave Fm Radio Module Frequency Modulation Antenna Board 87-108MHz 522-1620

AM/FM Medium Wave Shortwave 4-Band DIY Radio ModuleFM frequency: 87-108MHzMW frequency: 522-1620KHzSW1 frequency: 5780-12100KHzSW2 frequency: 12900-18000KHzThe headphone cable serves as the FM band antenna. Straighten and extend the headphone wire for optimal FM reception.Medium wave reception utilizes inductive antenna. Align the inductor parallel to both ground surface and radio station direction. Ensure no tall obstructions in front.Equipped with 3.5mm plug headphones (impedance >16Ω+16Ω). Wide-frequency headphones deliver superior audio performance. Powered by two AA batteries (1.5V x 2). Compatible rechargeable batteries.  Batteries not includedPower indicator: Green light (standby) → Red light (station locked) when rotating tuner.Integrated trimming potentiometer for precise volume adjustment.Band selection via manual switch. Utilize frequency dial with tuner knob for station search across different bands.SIZE :60x32x41.6mm