The mobile printing capabilities in your retail shop directly impacts customer service quality and associate productivity. PRINT WIDTH : ZQ310: 48 mm/1.89 in. ZQ320: 72 mm/2.83 in. MEDIA ROLL OUTER DIAMETER : 40 mm/1.57 in. MAXIMUM PRINT SPEED : Up to 4 ips (100 mm/s) WEIGHT : ZQ310: 0.37 kg/.81 lbs. ZQ320: 0.43 kg/.95 lbs. DURABILITY : IP Rating: IP54 BATTERY CAPACITY : Li-Ion 2280 mAh, 7.2V, PowerPrecision+