I opened this printer with the intention of using it, but it turned out to be incompatible with my register, so I am selling it. I only did a few test prints and haven't actually used it. I would appreciate it if you understand that it has been opened. The instruction manual is only in English. Below is an excerpt from the online description at the time of purchase: Supports BT function or USB cable connection, compatible with Windows 7/10, Android, and iOS systems. Please download the relevant app (for Android, supports caysnprinter Loyverse, BT Print, Kyte, RawBT; for iOS, supports POS Printer, Kyte, Kahero POS, Utak) or driver to your device. Compatible with ESC/POS printing commands. Direct thermal printing, no ink cartridges required. Smaller and quieter compared to dot matrix printers. The built-in 2600mAh rechargeable lithium battery has a long standby time and can print continuously for 1 hour on a single full charge. Wireless connection. Easy to carry, space-saving. Widely used for printing invoices, receipts, restaurant order information, shop receipts, etc. Specifications: Model: JK-5803P Color: White Size: 8.2 x 8.7 x 4.2cm Printing method: Line thermal Printing width: 48mm Resolution: (8dots/mm, 203dpi) Dots/line: 384 dots/line Printing speed: 50-80mm/sec Paper width: 57±0.5mm Roll paper diameter: ≤40mm Paper feed method: Easy feed (clamshell feed) Commands: ESC/POS Interface type: USB, BT2.0+4.0 Characters: Kanji (GBK compatible), international character set, ASCII, barcode, CODE39, EAN13, CODABAR, CODE93, ITF, CODE128, QR code graphics Paper loading method: Easy paper loading Battery: 2600mAh lithium battery Charging time: About 4 hours Discharge time: 1 hour Package size: 15 x 12.4 x 6.6cm Package weight: 390g/13.7oz