It's *free* for Skype to Skype or VoIP to VoIP (Skype is a flavour of VoIP really).
Set up was *really* easy ... I plugged the headset into the microphone and speaker sockets on my laptop, downloaded the free Skype software, ran the installer, and then clicked on the test button which makes a *free* call to a Skype server, plays you a welcome message (so you know your headphones work), records you saying something and plays it back to you (so you know your microphone works) and then it's just a matter of adding in your friends' Skype IDs or telling them yours so they can contact you.
I'm "magicianuk" at home if you ever fancy giving it a go.
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Set up was *really* easy ... I plugged the headset into the microphone and speaker sockets on my laptop, downloaded the free Skype software, ran the installer, and then clicked on the test button which makes a *free* call to a Skype server, plays you a welcome message (so you know your headphones work), records you saying something and plays it back to you (so you know your microphone works) and then it's just a matter of adding in your friends' Skype IDs or telling them yours so they can contact you.
I'm "magicianuk" at home if you ever fancy giving it a go.