Metal Earphone--- In-Ear Stereo Earphone E-311 (E311)

1) Type: in-ear type
2) Perform: highly accurate sound-reproduction, crystal clear sound, enhanced bass,
noise-isolating
3) Shell material: light metal
4) Driver unit: 10mm, 6u
5) Impedance: 32
6) Sensitivity: 108db/mw
7) Rated power: 3mw
8) Frequency response: 20-20kHz
9) Jack: stereo 3.5mm or 2.5mm
10) Normal packaging: PP bag and PE bag
11) Excellent packaging: gift box