... low frequency outputting. when closed,it will be smaller to be kept in pocket. 3.With 3.5mm audio ... plug, Applicable to many digital audio player like MP3, MP4, Laptop, PC, ... Pakcaging:1Pcs/color box80pcs/CTN:52*40.2*31cmN.W.:9.5KGG.W.:10.9KG20 FT:430 cartons,34400pcs40 FT GP:769 ... with L/C, if the amount is large, welcome to DO business with us by L/C. Shipping Way: ...