Resolution:203 DPI Printing method:Direct thermal printing Max.Print width:12mm Printing speed:15mm/s Media type:Gap label paper(Gap 10mm) Media width:15mm Max.roll diameter:43mm Media thickness:60-150 μm Memory:128K Flash:512K Interface:USB+Bluetooth Button:1 key(power key),1 light(status light) Dimensions:75*116*25.5mm(D*W*H)) Weight:136.4g Peel off Printer head life:Manual cutting Lithium battery:50KM Charging input:3.7V/1000mAh;Boot and standby time: 15 Hour,Full power can print: 1.17 Hour System:Android/iOS Operation environment:Temperature(-5~45℃),humidity(20~95%RH) Storage environment:Temperature(-10~60℃), humidity(20~95%RH)