Polono Bluetooth Thermal Shipping Label Printer, Wireless 4x6 Shipping Label Printer for Small Business. Polono Bluetooth thermal printer offers faster and clearer printing. This thermal printer is easy to set up and use, ideal for small businesses. Wide Compatibility 4x6 inch Thermal Printer for Shipping Packages.The thermal printer is widely used for printing labels from various marketplaces and shipping platforms, such as Amazon, eBay, ShipStation, ShippingEasy, Shopify, Ups, FedEx, Usps, ect