Bluetooth function, low noise high speed printing. Equipped with a capacity rechargeable lithium battery 7.4V, 2250mAh. Support client local upgrade, equipped with Windows computer side driver. It can be used for 5-7 after fully . The indicator light will be on when charging, the indicator light will be off after charging. The structure is exquisite light, easy to carry. Type:Printer Printing :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:-A, -E, -13, -8, CODE39, ITF25, CODABAR, CODE93, CODE128 2-D:QR code Instruction set:ESC \/ 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, , , , Italy 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 different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is and\/- 1-3cm.