Label Printer Portable Bluetooth Label Maker Machine for Office School Home Specifications: Model: B21S Material: ABS+Paint Baking Printing Method: Thermal Printing BT Version: 4.0 Connection: BT/USB Resolution: 203dpi Label Width: 20-50mm Roll Diameter: 25mm Print Speed: 30-60mm/s Battery: Rechargeable Lithium Battery, 1500mah Paper Type: Receipt Paper/Label Paper System Supported: Compatible with for Android, for iOS Item Size: 130 * 95 * 60mm / 5.1 * 3.7 * 2.4in Item Weight: 310g / 10.9oz Package Size: 181 * 118 * 67mm / 7.1 * 4.6 * 2.6in Package Weight: 520g / 18.3oz Notes: Please use official designated consumable paper or label tapes. Due to manual measurement, 1-2cm deviation is normal. The printing paper are not included.