Shopping tipsFollow the operation videos in U-disk to finish the installation! ATTENTION PC: USB or Bluetooth connection, MAC: Bluetooth doesn’t support Mac,only USB connection.Connect with USB cable to Windows PC or MAC to get high quality print.Wide ApplicationWorks with any Thermal Direct Label with a width range of 1.57″ to 4.1″.Wireless print only support windows computer and smartphone, not support MAC Print via USB on MacPrint on app through iPhone and Android.Operation video and direction is provided in the U-Disk for easier understanding.Notice: Only work with under 350 sheets labels if you use roll label Shipping platforms like Endicia, Dazzle, ShipStation, Shipping Easy, Shippo, ShipWorks, Ordoro, marketplaces like eBay, Amazon, Easy, and Shopify.