400ohm eaphone speaker drivers S400

Imported Graphene single piece molding diaphrams
400 ohm Japan imported extremely thin voice coil materials.all DIY earphone speaker driver replacement materials were carefully selcected and adjusted by skillled engineers
of ELFINEAR.The 400ohm Driver is easliy powered by mobile phone. professional devices are not needed.

This speaker driver was specially designed for DIY Lovers,audiophiles.