Fast, rugged and packed with time-saving features, this workhorse is designed for professional installers in real-world jobsite conditions. Quickly creates crystal-clear, professionally formatted labels. Exclusive "hot keys" automatically size, space and format labels for wires and cables, terminal blocks, 110 blocks, electrical and patch panels, vertical and fixed-length applications. Pre-programmed symbol library puts industry symbols, punctuation, currency and fractions at your fingertips. Prints Code 39 and Code 128 bar codes on 3/4" labels. Large two-line display is backlit for poorly lit installations. Slip-resistant grip and rubber bumper protect against damage from accidental falls while the convenient lanyard loop provides the option of hands-free portability. Uses industrial strength labels that resist extreme heat, UV rays, moisture, chemicals and solvents so you can be confident that your labels stay put and legible in the harshest conditions. Automatic shut-off maximizes battery life. Uses six AA batteries or quick-charging lithium battery (all sold separately).