Headset Keenion Kos 220 KOS-220 PORTABLE PC HEADSET -STYLE UNIQE -OVERHEAD STYLE -ADJUSTABLE MICROPHONE -GREAT SOUND FOR MUSIC -COMPOTABLE WEARING HIGH QUALITY AUDIO FOR YOUR PC CALLS,MUSIC,AND GAMING IN A PLUG AND PLAY HEADSET SPESIFIKASI: HEADSET -DRIVER unit 40mm -MAX in Put Power 80mw -IMPEDANCE 32ohm -+15% -SENSITIVITY 110-+3db MIC -52-+3db -FREQ 20-20Khz MIC 20-16khz -CORD 2.1m-+10% -PLUG 3.5mm MIC 3.5mm -MASS 168g