1. B MULTIMEDIA ACCESSORIES Multim dia headset Specifications e Volume control e Compatible AIM Yahoo Messenger Skype Headphones e Adjustable volume e Mylar headpones 840 mm e Power bass system e Impedance 32 Ohms 15 e Frequency response 20 20 000 Hz e Sensitivity 105 dB 3dB e Max input power 40 mW e Jack 3 5 mm e OFC cable length 2 20 m Colour Blue Microphone e Directional e Impedance 2000 Ohms e Omni directional e Frequency response 30 16 000 Hz e Sensitivity 54 dB 2 dB e Maximum consumption 0 45 mA e Operating voltage 4 5 V Ref CSM40BL Barcode 3303170046531 Multimedia headset FLEXT YLE Sound gt Headphones Packing 40 New product Inner pack 5