•Length: 1.2m (changeable)
•Speaker: 2 x 10mm Mylar speaker
•Frequency: 20 to 20kHz
•Impedance: 32Ω (or 16Ω) ±10%
•Sensitivity (at 1kHz): 110dB
•Plug: 3.5mm stereo

3.5mm stereo gum style earphone, with nice sound quality, in-ear type, with soft silicon gel, many colors optional,•Audio earphones/buds , gum style.
•With digital stereo sound
•Suitable for MP3/MP4 player, iPhone, iPod, DVD, CD, and so on
•Soft silicone tips for comfortable fit