We are offering bluetooth dot matrix printer.Printing method eight pin line printingprint speed 58mm paper width4.5lines secdimensions 120mm*100*50mmweight about 235 gprint density 240whole pointprint width 48mmbuilt-in font gbk font12*12 16*16 24*24data communication interface usbbluetoothbuffer max=828 charactersfifo cycle printinstruction see print command code tableprint driver win2000ntxp serial portspaper requirements normal paper roll57.5+0.5 millimeter or 57.5-0.5millimeterpaper replacement method mechanical papercut method manual tear-off