This image displays the Phomemo PM-241BT shipping label printer, and features the following: Printing Technology: Direct thermal, no ink or toner required. Connectivity: Supports wireless connection via Bluetooth as well as wired connection via USB. Usage: Designed for printing shipping labels (4x6 inch size), postage labels, and barcodes. Speed: Fast printing up to 72 labels per minute. Compatibility: Works with smartphones and computers.