Print method: Thermal line printing print width: Max=104mm, 832 dots Print speed: Up to 100mm/sec Resolution: 8 dots/mm(203dpi) Paper dimensions: 112.±0.5mm x diameter 50.0mm Interface: USB type-C(optional) , Bluetooth Power Adapter: 5V DC/2A Charging time: 4-5 hours Battery Power: 2550mAh, 7.2V 18.36Wh Working time: 5 hours continuous, 7 days standby time Printer head life: 50 KM Working conditions: Temperature: -10~50 degC, Humidity: 10%~90% Weight: Net weight: 0.583kg/Set