Need Suggestion on speakers

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I guess this is a common problem, i have my speakers plugged in, but only a headset jack in the front, meaning just the 'headphones'.

So, I want the ability to plug my headset(microphone) and my headphones into a jack that doesn't involve me climbing behind my desk every single time. If it means another pair of speakers which I'm assuming it will I can handle that. I'm not to fond of subwoofers since it gets in the way of my desk and I use my headphones 70% of the time. Can anyone point me what to look for and what specific models?