... computer headset , MP3 MP4 VOIP headset , airline earphone/headphone, disposable earphone/headphone, noise cancelling headphone and other in flight products ... Over the head call center headset with soft sponge ear cushion.Call center headset with buyer's specifications accepted ... 20Hz-20,000Hz-Cord length:1.8m+/-3%-Plug type: 3.5mm stereo / RJJ plug 2.5mm , USB, DC,Microphone specifications:-Dimensions ...