Ebony wood earphone. Special wood in-ear earphone headphone quality craft gives different quality. High quality appearance bings a new visualimpact. High intensity listening experience with crisp, clear sound and deep bass. The wood material can confirm the tone quality well. Interchangeable ear pieces (small, medium, large) are included for a comfortable, custom fit Technical Specifications:Type: in-ear earphoneDriver size: 8mm.Sensitivity (1KHz): 101+/-3dBImpedance (1kHz): 16 OhmFrequency response: 20Hz-20KHz.THD, total harmonic distortion: < 0.3 %Cable:1.2m symmetricalInput Connector: Gold-plated 3.5 mm (1/8”)