Feature: 1. BT and USB Connection: This thermal printer supports Bluetooth function, can be connected to a smartphone for wireless printing, or connected to a computer through USB cable for printing. 2. Wide Compatibility: This thermal printer is compatible with various system, for Windows XP, for Windows 7 8 10, for OS X, for LINUX, for IOS, and for Android, supports local program upgrade. 3. High Speed Printing: This thermal receipt printer supports Bluetooth 4.0, with a printing speed of 50‑80mm/s and a resolution of 203dpi, greatly improving printing efficiency. 4. Battery Powered: This Bluetooth printer has a 7.4V lithium battery, with a capacity of 2000mAh, ensuring long term and continuous printing, convenient to use anytime, anywhere. 5. Applicable Range: This portable thermal printer is suitable for printing receipts, orders, barcodes, QR codes, text, etc., and used in supermarket, shopping mall, and restaurant, etc. Specification: Item Type: Thermal Printer Model: PT-380 Power: 5V 1A Battery: 1 x 7.4V Lithium Battery 2000mAh (built in) Resolution: 203dpi (8 dots/mm) 576dot Printing Speed: 50-80mm/s Effective Printing Width: 80mm / 3.1in Interface: Bluetooth, USB Barcode Types: UPC-A, UPC-E, EAN-13, EAN-8, CODE39, ITF, CODEBAR, CODE93, CODE128 QR Code: Support Working Temperature: -10℃-50℃ Working Humidity: 20-85%RH Storage Temperature: -20-70℃ Storage Humidity: 5-95%RH Printing Command: ESC POS compatible with M command set Driver: For WindowsXP, for Win7, for Win8, for Win10. Package List: 1 x Thermal Printer1 x Label Paper 1 x Data Cable