Dual 3 position 3.5mm jack, ideal for connecting two headsets on one audio source, let you enjoy your cellphone music together with your friend easily. 3.5mm Speaker and headphone Splitter with two male ports:one for Headphone Jack on your PC/Laptop,the other for Mic Jack on your PC/Laptop. Headset to PC adapter,With 3.5mm Speaker Mic Stereo Audio Y adapter, you can connect your newer headsets (audio & microphone) to a PC or Laptop for use with VOIP applications,such as Skype or chat programs, MSN Mesenger, Yahoo, Google Voice etc. 3.5mm audio Y splitter cable with Oxygen-free copper provide maximum's conductivity and durability,Compact design for maximum portability - a great solution to have on hand in your laptop bag. 3.5mm stereo splitter cable allows you to easily connect your stereo headset Mic to a PC audio port and mic port at the same time.