V-27l mobile phone computer sound box
technicalparamaters
output power:3wx2(thd)=10
signal-to-noise ratio
spearker: 52mmx2
standard impedance: 4
frequency response:90hz-20khz
supply voltage: usb 5v
degree of separation:70db
sestem requirements
sv-usb-3.5
sv power usb interface adapter, mobile phone or computer with 3.5mm audio output port.
computer system sound card, hotplug is not repuired to be driven by software.