Sennheiser sh 230 cstd01
Headband headset headband headset telephone headset monaural use fits any telephone with handset incl headset holder active guard noise cancelling microphone series sennheiser sh transmission mode cable sound mode mono type of headphones headband features microphone noise reduction type of cable single sided length of cable 1 m microphone frequency range 300 14000 hz type of fitting on ear