1. Support TF card and USB stick plug mp3 music play. 2. With FM radio function. 3. Built-in high capacity lithium battery. 4. MINI/5Pins USB charging and audio input socket. 5. 1*3W 4Ω, Φ45mm strong magnetic hi-fi speaker. 6. Built-in low consumption and tiny distortion rated digital amplifier of 3W. 7. Universal 3.5mm earphone output jack. 8. Multifunctional knob control: MODE (FM/TF CARD/USB/LINE IN/LED), VOL-/PREV, VOL+/NEXT, PLAY/PAUSE. 9. With 7 colors LED stage light at the top of unit.