As a trusted name in label makers, the LabelManager ® 450 is a cut above the competition. With an automatic 15-label memory, a standby clock & calendar, & seven fonts in 13 styles & five sizes, this label maker has everything you need. Plug the label printer into your Windows ® or Mac ® computer & print labels directly from documents. Power the handheld label maker with six AA batteries or the included AC wall adapter. The device accepts tape sizes of 1", 1/2", 1/4", 3/4", & 3/8". The QWERTY keyboard makes typing up your own labels fast & efficient. Power Source(s): 6 AA Batteries (Sold Separately); AC Adapter (Sold Separately); Tape Size: 1/4"; 3/8"; 1/2"; 3/4"; 1"; Number of Printed Lines: 5; Printing Speed: 0.5" / Second.