Product Information Features: Utilizes thermal printing technology, no ink cartridge needed, clear printing, convenient and cost-saving. 200dpi high-resolution print head, clear printing, stable performance. Small and compact size, does not take up much space, easy to carry. Open the cover to install the paper roll, connect to your devices via BT, and start using it. Built-in 1000mAh battery, long endurance, can work for a long time. Wide range of applications, it can be used to print notes, mistakes, schedules, memos, articles, pictures, receipts, labels, etc. Specification: Type: Portable Printer Printing Method: Thermal Printing Color: White Connection Mode: BT Connection BT Version: 4.0 Resolution: 200dpi Paper Size: 57*25mm Charging Port: Micro USB Battery Capacity: 1000mAh Item Size: 8.5 * 8.5 * 4.5cm /3.35 * 3.35 * 1.77in Item Weight: Approx. 178g /6.28oz Packing List: 1 * Printer 1 * Paper Roll (Installed in the printer) 1 * Data Cable 1 * User Manual Utilizes thermal printing technology, no ink cartridge needed, clear printing, convenient and cost-saving. 200dpi high-resolution print head, clear printing, stable performance. Small and compact size, does not take up much space, easy to carry. Open the cover to install the paper roll, connect to your devices via BT, and start using it. Built-in 1000mAh battery, long endurance, can work for a long time.