Feature: Brand:Phomemo Connectivity technology:Bluetooth, USB Printing technology:Thermal Special feature:Portable Model name:M832 Printer output:Monochrome Max print speed monochrome:5 ppm Item weight:About 690g Product dimensions:264*78*45mm Battery Capacity:2600mAh Surpport Paper Size:US letter/A4/4"/3"/2" Inches .