Stereo computer mini speaker , USB speaker ( FVN1) Model: FVN1 Color: Yellow Sound channel: 2.0 stereo Power output: 2.5W* 2( 4© ) Speaker Unit : , 2.0â 4© 3W , Magnetically shielded speaker, Frequency Response: 100~ 20KHz Sensitivity: 700mv SNR ( Signal to noise ratio) : 70Db Power/ voltage: USB/ DC5V G/ W 15.8kg, N/ W 14.6kg product Size: 109* 99* 109mm* 2 Qty/ CTN 25 pcs Packing size: 56* 52.8* 43.5cm Carton weight: 1.2kg Accessories: 1: USB connecting line 2: A Audio line 3: one power adaptor: 5V 500mmAh 3D stereo sound with high sound quality Magnetically shielded speaker, protecting the screen Manna Su Manna# fevma.com ( # = @ ) 86+ 18925385060 QQ: 613785758 Skype: manna-fevma