I used to use Voice Commands via the Microsoft GameVoice when I was only 2-boxing and knew nothing about KeyClone... it worked well until the midst of battle and/or panic when it would stop recognising my stressed out vocals... heal, Heal, HEAL, HEAL FFS!!!

I then moved on to a Belkin n52, which was great for 2-boxing with 2 PCs.

Months later I witnessed my first 5-box Shammy team in AV, did my research, invested in KeyClone and love 5-boxing now... in fact, it's very difficult to go back to 1 boxing!