... , it can compatible with MP3, MP4, CD player and PC, etc.3, With FM radio function, frequency range: FM ... your travel ,portable, super slim and mini size, easy to carry7, Material: Pure ABS+ metal loudspeaker netTechnical specifications:Output: ... 2.4Frequency range: 80HZ-20KHZImpedance: 4Power Voltage: USB / DC 5.0 VAccessory : Audio cable ,USB cable, lanyard , lithium battery ,manual. Warranty Card. ...