The D30s Bluetooth Wireless Sticker Maker Handheld tag Machine Set with 3 rolls labels tape is work with the "Print Master apps". SPECIAL DESIGH: Label printing is supporting the printing of multi-national languages, horizontal version, vertical version, 1D/2D bar code and table printing, etc. Parameter information: Product Model: D30S Color: White supported system: Android/iOSPrinting technology: Thermal printingPrinting resolution: 203dpiPrinting speed: 60mm/sLabel width: 12mm,14mm,15mmEffective printing width: 12mmCommunication interface: Bluetooth 4.0Materia: ABS+PCPrint head service life: 50KMPower supply method: Micro USB/Lithium batteryProduct size: 5.2*3.2*1.3Inch(133.5*80.5*33.5mm)Power Input: 5V⎓2ABattery type: 1000mAh Lithium batterySupport consumables: Continuous paper/Interstitial paper/Black label paperPrinting Density: Light, standard, darkFeature1. One-click printing Smart App. 2. 50+ label style. 3. Portable & MiniIntroduction of paper roll installation: 1. Slide the release latch following the arrow in the direction, and open the paper bin cover to 90 degrees(Please don't touch the sharp paper tearing blade). 2.unpack the label paper and put it into the paper bin, then pull the paper 5mm out of the paper outlet. 3.Close the paper bin cover and maker sure the release latch is slid to the rightmost.Long press the ON/OFF button to correct with an app. Note: When installing or changing the label paper for the first time, please click the power button to feed the paper.