'
1) Output power: 3W (3W * 1)
2) Frequency response: 150 Hz - 18 kHz
3) bucket size: 2 inch * 1/4Ω
4) Internal Battery: Lithium electric 3.7V/500MAH
5) Input Power: 5.0V
Speakers function: support PC audio input, TF card, USB interface and FM radio function
Accessories: USB charging cable, 3.5mm audio cable
'