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Specification:Out put:3W speaker size: 2inchfrequency response :90Hz~20KHz

sensitivity:84dB

normal impedance:4ΩInput:5V USB Charger 

Package details:

Size:82*76*67(mm)

NG:473gpackage size:100*192*90(mm)

CTN Size: 450*395*530(mm)50pcs/CTNNG:26.6KGGW:28.1KG

I am sweety ,pls feel free to contact me, many thanks! 

computer subwoofer