Specifications:
Drive unit: 40mm
Microphone: 6*5/-38dB
Frequency: 20-20000Hz
Sensitivity: 116dB
Impedance: 32ohm
Rated power: 20mW
Maximum power: 50mW
Cord length: 2.85M
Plug: USB 2.0 & 3.5mm

Package included:
1 x headphone