Earjax BZ-ETC74-0611 Tonic Series Headphones, Green/Silver Included in box: Tube and lanyard, Clip, earjax sticker decals, Multi-tip fit kit: S,M,L, standard tips, S,M, L, transparent, Med. three-tiered tips Speaker Type: High-Def. mini speaker, Speaker Diameter: 10mm Freq. Response: 20 Hz - 20k Hz, Power Handling: 3 mW, Sensitivity: 102 dB 1mW, Impedance: 16 ohm Cable Type: Rubber (TPE), Plug Type: Aluminum, gold-plated