Gamma+ Italia Absolute Zero Foil Shaver can be used corded or cordless. It features a unique USB-charge cord and a lithium-ion battery that charges to full strength in as little as 30 minutes for a remarkable 120 minutes of continuous run-time. At just 4.6 ounces, the Absolute Zero is incredibly lightweight. Its compact design allows even the tightest corners to be easily shaved. An integrated retractable precision trimmer and a convenient multi-function USB charger all combine to make the Absolute Zero absolutely perfect for every barber or stylist!