Advantaged characteristics Print Method: Thermal Line Printing Print Speed >90mm/s Reliability:100km Resolution: 203dpi8dot/mm Print width :72mm576 dots Roll Width(Max):80�±01mm Roll Diameter(Max) : �?â?¤40mm Roll Type: Thermal Roll Power: Re-chargeable lithium battery Battery:7.4VDC/2000mA Charging mode: external 9V/1.5A Language:Multi-languages Printing Parameters:Logo download and printing supported Font: 24x24 Dot simplified Chinese/ Taiwan or HK Traditional( complex font) or international languages Western: ASCII FontA:12�?24 dot FontB: 9x17dot Korean:code page 949 Extented Character Table: OEM437/Katakana/OEM850/OEM860/OEM863/OEM865/West Europe/Greek/Hebrew/East/Europe/Iran/WPC1252/OEM866/OEM852/OEM858/IranII/Latvian/Arabic/PT151,1251/OEM747/WPC1257/Vietnam/OEM864/Hebrew/WPC1255/Thai Print Command: Compatible with ESC/P0S/STAR Communication Interfaces: Standard RS232/USB,Bluetooth 2.0/SPP agreement (Optional) Bluetooth 4.0( i.e. Iphone 4S, Iphone 5, Mini Ipad, Ipad 3 ) Features 1). Mini structure( 104*100*46mm ) and light weight (260g) 2). 80mm thermal print 3). Bluetooth connection, more convenient 4). 90mm/s high speed printing 5). Support QR code and barcode 6). 2000mah long lasting battery. 7). Super power lithium electricity, standby time can reach 5-6 days. 8). Auto sleep, auto awake, save electricity. 9). Support multi languages 10). Low operating costs (no ribbons, ink cartridges)