Headphones with microphone, plastic case and with inner cushions. Very comfortable for both ears and head. -Frequency Response: 20Hz~20KHz -Plug: 2 x 3.5mm jack -Speaker: F40mm, 32Ohm ± 15% -Speaker Sensitivity: 105dB±3dB -Mic Size: 6*5mm -Mic Sensitivity: -58dB±2dB -Mic Type: Omnidirectional -Cable Length: 1,5m