Standard Memory: 512 MB, Application/Usage: Mobile, Maximum Print Width: 103.89 mm (4.09"), Recommended Use: Label/Receipt Print, Connectivity Technology: Wireless, Maximum Mono Print Speed: 127 mm/s, Print Color Capability: Monochrome, Maximum Print Length: 990.60 mm, Real-Time Clock: Yes, Maximum Print Resolution (dpi): 203, Power Source: Battery.