... Package: Poly bag, Static-proof bag, Blister packing, Crystal box, Metal box, Plastic cylinder or Customized packingOuter Package: Carton sized 46cm*34cm ... ring, 3.5mm or 2.5mm plugSpeaker: Different levels of quality based on the combination of different diaphragm, diameter, material and ... be much appreciated. Hope to cooperate with you. mini earpiece High quality earphone/metal case ear phone