Product Introduction: This portable mini radio features FM campus radio frequency band reception, using PVC material panel for high-quality and non-deformable construction. It provides good sound quality, loud and clear, and can be powered by 2 No. 5 batteries. The frequency range includes FM: 76-108MHZ, AM: 530-1600khz, and SW: 5.95-18.29mhz. It has an external power supply of DC 3V, a power output of 100mw, and a noise reduction ratio of ≥ 34db. The speaker is 57mm/8ohms/0.5w.