Review title is Wireless [SEP] Purchased for hubby who does tattoos and he was so surprised it's cordless and actually works. He was worried it wouldn't hold power but it's motor is 12V or 10,000RPn and it has a 2200mAh battery that allows you to work for 8 hours. It has an overcharge protection so if you put it on charge and it finishes it won't ruin the battery. It also has short circuit protection and temperature control. It has a digital LCD screen that's shows you the display in HD. It's lightweight and easy to take anywhere with you to tattoo where it's clean and safe to do so