Headphone Adapter Cable for mobile phone

Hello I use it with my Blackberry, I connected the green parts and pink sheets with a headset normally used for connection to the sound card of a computer. used my cell phone with headphones and a microphone in the office became pure happiness. need to hold the laptop when you receive a call. You can continue working, typing on the computer and continue talking. The hands are free of any movements. This is the true freedom.