Features:
Sennheiser sound the integrated USB sound card and quality speakers ensure a great sound experience
Noise canceling clarity ensures your voice comes through crystal-clear
USB plug & play simply plug into your computers USB port to start phoning over the net
Convenient 3-in-1 control fully adjust the volume/mute and control your phoning session directly from the headset
Free HeadSetup software download free software from Sennheiser to enable even easier control of your PC from the headset
Keep one ear free the single-sided design keeps you in touch with your surroundings while you chat
Fully flexible boom arm adjust the microphone for optimal voice pick-up and comfort
Light and comfortable with the lightweight headband, its easy to forget you are even wearing a headset
2-year warranty

Technical Data:
Technical Data and Specification of PC 26 CALL CONTROL
Article No. 504521
Wearing style - Headband
Cable length - 3m (9.8feet)
Weight - 70g
Color - black
Headphones:
Technical Data and Specification of PC 26 CALL CONTROL
Article No. 504521
Ear coupling - on-the-ear, open acoustic design
Frequency response (headphones) - 40 18,000Hz
Impedance - 32
Sound pressure level (SPL) - 109dB
Microphone:
Technical Data and Specification of PC 26 CALL CONTROL
Article No. 504521
Impedance - 2k
Frequency response (microphone) - 80 15,000Hz
Pick-up pattern - Noise cancelling
Sensitivity as per 121 TR 9-5 - 38 dBV/Pa