USB 2.0 BACKLIT GAMING SPEAKER
ES-509
Product Parameter
Output power/RMS: 3W*2
Driver Unit: 2inch*2
Frequency response: 150Hz-20KHz
separation: >30dB
input sensibility: 650mv
power input: DC 5V 
function: volume
product size: 67(W)*79(D)*98(H)mm      

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