Features: 1.It applies mobile products to supporting the use, and suitable for outdoor work environments 2.Small in size,light weight,reliable performance,simple to connect, easy to use 3.Low operating costs(No Ribbons or ink cartridges) 4.High-speed , long life-span and high quality . Suitable for all types of commercial retail POS systems 5.Multi-Function: Practical thermals printer that can help to print errors, work plans, shopping lists, photos, memo, receipt, labels, tag, etc. One-click printing to improve work and study efficiency. 6.Wireless connection: Support connect with app (walkprint) by BT, compatible with Android and iOS systems. With quick recognition function, you can get text content by taking pictures. Notice: Actual color may be slightly different from the image due to different monitor and light effect Please allow 1-3cm deviation due to manual measurement c17: Printing parameters: 200DPI Printing method: thermals inkless black and white printing Battery capacity: 800 mAhs 7.4V lithiums battery 2A charging Printing paper: 57x30mm need to purchase original printing paper for easy replacement Connection method: BT wireless inkless black and white printing Factory standard configuration: host + charging + manual + certificate + printing 1 roll Product size: 808035MM about 250g C9: Printing parameters: 200DPI Printing method: thermals inkless black and white Battery capacity: 800 mAhs 7.4V lithiums battery 2A charging Printing paper: 57x30mm need to purchase printing paper for easy replacement Connection method: BT wireless inkless black and white printing Factory standard configuration: host + charging cable + manual + certificate + 1 roll of printing paper Product size: 110X80x30MM Single weight: about 256g C13: Printing parameters: 200DPI Printing method: thermals inkless black and white printing Battery capacity: 800 mAhs 7.4V lithiums battery 2A charging Printing paper: 57x30mm, E is needed for easy replacement Connection method: BT wireless inkless black and white printing Factory standard configuration: host + charging cable + manual + certificate + printing 1 roll Product size: 8080x35M about 250g C15: Printing parameters: 200DPI Printing method: thermals inkless black and white printing Battery capacity: 800 mAhs 7.4V lithiums battery 2A charging Printing paper: 57x30mm need to purchase original printing paper Connection method: BT wireless inkless black and white printing Factory standard configuration: host + charging cable + manual + certificate + 1 roll of printing paper Product size: 808035MM about 240g Printing paper size: 25*57mm Notice: C9/C13/C15/C17 Printer Optional but not including printing paper. Printer shall work with printing paper, we offer Printing Paper choice ( 5pcs), highly recommended includes: Choice 1: 1 x Printer (C9/C13/C15/C17 Optional) Choice 2: 5 x Printing Paper( Printing Paper only, not including printer)