Bluetooth host function, low noise and high speed printing. Equipped with a large capacity rechargeable lithium battery 7.4V, 2250mAh. Support client local program upgrade, equipped with Windows computer side driver. It can be used for 5-7 days after fully charged. The indicator light will be on when charging, and the indicator light will be off after charging. The structure is exquisite and light, easy to carry. Type:Printer Printing method:thermal printing Effective printing width:78 mm Density is 8/mm, 384 points/line Printing characters: ANK:8 x 12, 16 x 24 GBK:16 x 24, 24 x 24 Characters per line ANK:48,32 GBK:24,16 Paper Type:Thermal Label Paper Paper width:80mm Reel Diameter:50mm Core diameter 15mm (minimum) Paper thickness:0.12mm Print head life:50 kilometers Barcode 1-D:UPC-A, UPC-E, EAN-13, EAN-8, CODE39, ITF25, CODABAR, CODE93, CODE128 2-D:QR code Instruction set:ESC / POS Power supply:AC100-250V/1.0A Working temperature:-10 - 50 degrees Celsius Storage temperature:-20 - 70 degrees Celsius Operating humidity:20-85% Storage humidity:5-95% Printing speed:90mm/s Plug Type:EU Plug,it applies to Indonesia, Germany, France, Spain, Italy and so on. Voltage:AC100-250V Colour:Black Material:ABS Size:11.6x12.3x5.4cm Package Contents: 1 * Printer 1 * Roll Paper 1 * Power Adapter 1 * Printer Cover 1 * USB Cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.