Product Name: PU/Vinyl Blue Bear Radio Item NO:OR302A/B MAIN FUNCTOIN 1.FM auto-scan receiver 2.Double sound-track power amplifier Technologic Index: Frequency scope: 87-108MHz Frequency response: 60Hz- 20KHz Harmonic distortion ratio: <0.5% Input sensitivity: 200mV-1.2V Speaker impedance: 8 Output power: 2*0.5W Power supply: DC3V (2*AAA)