The handpiece has a cooling tip and some places attach a Zimmer to it that sprays cold air during the treatment.
I don’t know about you but for me electrolysis is much more painful than the Soprano XL.
The Soprano XL is a diode which is great for skin types 1-4 and we also had good success with darker people.
The XL been out since early 2007 and before that they had Soprano (without the XL) which is completely different and far from being pain-free.