Feature: 1. In-Ear Noise lsolation Earphone2. Extended bass Response3. Neodymium Drivers4. Three Different Size ear cap Technical data:Color: As the picture showMaterial:Wood & MetalEar head diameter:10 mmWeight:14 gCondition:100% New in boxFrequency response:12 --- 22000HzMaximum Power Input:50mWImpedance:16 OhmsSound pressure level:106dBLength:135cmPlug:3.5 mm plug