Model name:A71

Speaker: 40mm

Impedance: 32 Ohms

Sensitivity: 110dB +- 3dB

Transmission Frequency: 2402MHz-2480MHz

Frequency Response: 20Hz-20KHz

Plug Type: 3.5mm/6.35mm stereo

Microphone: Yes

Warranty Period: 1 Year 

In The Box:

1U A71 Studio headphones

1U 2m audio cable with boom mic & volume control

1U Dual-duty cable for 6.35mm and 3.5mm sockets

1U Dual 3.5mm "Y" extension cable

1U User manual

1U Portable bag