Features: Support Wireless BT 4.0 connection, no need to download driver, compatible with Android and iOS smartphone. Please follow the user guide to download the relative APP on your smartphone. Supports 1D,2D bar-code printing, forms, graphics, fixed assets, can be used as price labels, cable labels, jewelry labels, address label, folder labels. Support printing contents: symbols, pictures, logo and so on. Large adjustable paper bin design, support max. 50mm label width, reduce paper change times. Easy to load paper. 48mm effective print width, 203dpi resolution. Comes with a thermal label paper roll (50*30mm), print as soon as you receive the product. Portable and lightweight, convenient to carry around, it doesn't need much space. Widely used in commercial retail, warehouse label printing, price tag, jewelry label, shelf label, packing list label, drug label, etc. Built-in 1500mAh large-capacity rechargeable lithium battery, super battery life, with smart power saving and power consumption control functions, to ensure longer print time. Using type-C interface, more convenient to charging and more stable to transmit data. Specification: Model: B1 Resolution: 203dpi Size: 132x91x61mm/5.1x3.5x2.4in Weight: 291g Charging Port: Type-c Print Speed: 20mm-50mm/s Effective Print Width: 20-48mm Label Width: 25-50mm Connection Method: BT Battery: 1500mAh Package Size: 16 x 12.5 x 8.5cm/6.2 x 4.9 x 3.3in Package Weight: 550g/19.4oz Packing List: 1 x Label Maker 1 x 50*30mm Label Roll 1 x Type-C Cable