Bixolon SPP-R200. Print technology: Direct thermal, Print speed: 80 mm/sec. Interface: Serial/USB, Bluetooth. Internal memory: 16 MB. Dimensions (WxDxH): 79.5 x 126.7 x 43.6 mm. Battery technology: Lithium-Ion (Li-Ion), Power requirements: AC 100 - 250V, 0.8A