MB-230 

Output power: 4W

Speaker specification: 1.5" 40hm 3W

Frequency response: 100-20k Hz

S/N: 85 dB

Power Source: Lithium battery(3.7V 500mA) or USB cable or DC adapter(5V 500mA)

Function spec: Card reader, USB reader, Power, Voloum, LED, USB power charge, 3.5mm audio in.

Audio Source: PC, MP3, MP4, MD, CD, DVD, player, Mobile phone, etc reader, Power, voloum, remote controller, LED 

Product Size: L160*W64*H65mm