Bluetooth host function, low noise and high speed printing Equipped with Windows computer side driver, support client local program upgrade Exquisite and lightweight structure, easy to carry Barcode 1-D: UPC-A, UPC-E, EAN-13, EAN-8, CODE39, ITF25, CODABAR, CODE93, CODE128; 2-D: QR code Equipped with large capacity rechargeable lithium battery 7.4V, 2500mAh battery, 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 Product name: MTP-3F thermal printer Material: ABS Colour: Black Printing media: thermal paper Interface: Bluetooth bluetooth Effective printing width: 78 mm Density: 8/mm, 384 points/line Printed 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 Drum diameter: 40 mm Roll core diameter 15mm (minimum) Paper thickness: 0.12mm Print head life: 50 km Instruction set: ESC/POS Power supply: AC110-220V/1.0A Printing speed: 90mm/s Support system: Windows/iOS/Android Plug Type:US Plug,it applies to Canada, India,Mexico, Thailand, the United States, the Philippines,Taiwan and so on. Package Contents: 4 x MTP-3F Mini 80mm Bluetooth thermal POS printer 4 x roll paper 4 x Power adapter (US Plug) 4 x Printer cover 4 x 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.