Product Introduction: This portable radio features FM campus radio frequency band reception, using PVC material panel for high-quality and non-deformable construction. It offers 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 shortwave frequencies. It has an external power supply option of DC 3V and a power output of 100mw. The noise reduction ratio is ≥ 34db, and the speaker is 57mm/8ohms/0.5w.