1)with microphone
2.Earcap is made in sponge
3)with volume control
4)wire lenght:1.9meters
5) Mic dimensions: Ø6.0*5.0mm
6)sensitivity:-62dB±3dB
7) directivity:omnidirectional
8)impedance:2.2Ω
9)speaker diameter:Ø30mm
10)impedance:32Ω
11)frequency response:20~20000HZ
12)Max input power:20mW
13)sensitivity(S.P.L):105dB±3dB
14)3.5mm stereo plug