1) Ear bud made of metallic material and crystal
2) Frequency response: 20Hz-20 kHz
3) Speaker impedance: 32Ω+/-15%
4) Driver unit:diameter 10mm mylar speaker
5) Rated power:1mW
6) Max input power:6mW
7) Sensitivity: 100dB
8) Wire:diameter 1.8mm,length 1.3M
9) Plug: 3.5mm stereo
10)PU/PVC rubber for earphone wire
11)Weight:15g
12)Application:ipod,computer,MP3/MP4 ect.
With lifelike sound and outstanding bass response

Metal Earphone with Crystal (DT-031) product offered by Shenzhen Dtaitech Ltd.