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To activate preheat, just click the button twice. This will allow for 15 seconds of continuous heating. Three voltage settings: 3.6v, 3.8v, 4.0v.
I am REALLY HAPPY w this lil nugget! My first one in the case lasted way over a year. Good to replace it w/o another case. Perfect size, selection of strength & charges SUPER FAST! Then holds a charge for idk how long. I use during the day so it's ON for several hours. Thanks TF!
Great pen so far, hoping it lasts. This type of pen seems to go bad. Very happy with all of Tweedle Farms products.
I bought this pen and I have tried it out for 2 weeks now. It’s a really good pen I charged it one time all the way I haven’t needed to charge it yet! It’s also very easy to use!!!
This is a really great device. Easy to use and well built, love the little wallet. It lasts a while and charges super fast! I love it.
