Features:
【All in One Printer】 A4 mobile printer, ideal for printing PDF file, test paper, webpage, contract, photo, picture, etc. an excellent assistant for study and office work. 
【Multiple Printing Sizes】 With 2 clips to adjust the paper slot width, A4 thermal printer is support 210mm/107mm (A4/A5) width of thermal paper now, different sizes of paper to meet your printing needs on multiple occasions.
【Convenient for Your Life】 With compact size - 275x110x60mm. Built-in 2600mAh rechargeable batteries, which can continuous print 3hrs after full charged, long standby time of 90 days, great for carry to business travel, school etc.
【High Compatibility】 Support IOS and Android mobile phone by bt connection. Turn on the printer by pressing the power button for 2sec first. For Mobile Device, download the APP (NillnkPrinter) first and enter it and connect with the machine through BT function.
【Premium Printing Quality】 A4 printer equipped with high quality print head, which has over 50km print life and printing about 168000 A4 Paper. Adopt advanced thermal printing technology, no ink cartridges or consumables are required, energy saving and environmental friendly.

Specification:
Model: A4BT
Color: White
Battery: Built-in Rechargeable Battery 2600mAh 
Connection: BT, USB Type-C
Printing Technology: Thermal Printing

Printer Size:27.5*11*6 cm

Printer Weight:1.12KG, with Accessories:1.32KG

Packaging Details: Each in a inner box, 10 boxes per caton

Inner Box Size:34.5*15*10.5 cm

Carton Size:36*32.5*55.5cm

Gross Weight:14KG/carton

Notes:
1. Please read the user guide carefully when you start to use the product.
2. Please download the app before use and connect the device via app.
3. Please make sure that only thermal paper can be used in printing.
4. The macOS is not supported now.
5. If the printing goes wrong, please check the installation of paper roll or contact us. Thanks!

Packing List:
1 x Thermal Printer
1 x USB Cable (Type-c)
1 x User Manual