technology : direct thermal printing with a line thermal print head print speed: monochrome: up to 4 ppm print res: 300 dpi i/face : std: usb and bluetooth paper cassette: 5 paper input high capacity: up to 50 sheets dim (w x d x h): 100mmx 160mm x 17.5mm weight: less than 300g * bluetooth capability * rechargeable lithium ion battery through ac adaptor power supply. * prints from laptop or desktop pc via usb or bluetooth