58MM portable thermal printer●print speed: 90 mm / sec(Max)●Support 1D,2D bar code printing●Flowing and graceful model with ergonomic design and excellent grip for a easy hand-taking●Big paper warehouse, support max. 40MM roll diameter●compatible with Windows, Linux, Android and IOS system●Super battery lasting time (1500 MAH large capacity lithium polymer battery, Charger: 5V/1A)●Intelligent power saving, power control, variable speed printing●Unique battery power display●support buzzer reminder function