Automatically connects to Bluetooth on smartphone or tablet.  Instantly ready to print - easily create labels on Apple or Android, smartphone or tablet with the new, intuitive DYMO® app.  Instant thermal printing technology - no ink cartridges required.  Powered by 4X AA batteries (not included).  Compatible with DYMO® Authentic LetraTag® consumables for high-quality printing: paper, plastic, metallic and iron-on (12 mm).