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* Portable Bluetooth Mini-boom Bass Speaker
* Support TF card, with MP3 player function
* Build-in Lithium-Battery playing music up to 8 hours
* Excellent sound quality
* Frequency range: 60 to 18,000Hz
* Impedance: 4¦¸ ; Output power: 3W
* Acoustic audio input connection: 3.5mm stereo | 
