H127 Main features 1. Thermal Inkjet-Cortex A9 quard-core CPU. 2. Print up to not limit character on one line. 3. Handheld Inkjet Printer has easy operation, free maintenance. Just press-to-Print. BESTJET H127 handheld inkjet printer is suitable for carton, stone,bamboo, wall etc,and also available for other materials interfaceUSB, Photoelectric interface VoltageDC16.8 lithium battery(2600mAh*4) , work more than 4 hours and 8 hours standby Power consumptionThe average power consumption is lower than 5W Working environmentTemperature:0 - 38 degree; Humidity: 10% - 80% Printing materialBoard, carton, stone, pipe, cable, metal, plastic product, electronic, the fiber boardphotosH127 website:http://www.best-jetprinter.com/handheld-inkjet-printer/h127/