Easy to Use: label printer connects with iOS & Android phones via Bluetooth. Step 1: Download "Marklife" app from Google Play or App Store. Step 2: Install paper roll. Step 3: Connect P15 via Bluetooth in the APP. Step 4: Choose a quick template and print. It is not compatible with Google phones running Android 14. This label maker's APP includes 3600+ icons, 700+ borders, 5500+ materials, 750+ templates, 29 languages. Note: This label maker doesn't work with computers Multiple Creative Functions&Templates: This app for the label maker provides various features and templates, making it easy to create various designed label stickers in the App with text, QR code, barcode, materials, images, time and borders, etc. The length of labels is fixed,including 12×40mm,15*30mm and more.