Feature: 1. Portable and multi-functional print pen, easy to carry. Suitable for printing on surface of paper, , ceramics, metal, plastic, leather, composite material, T-shirt, skin. 2. Download relative app \"printpen\" in your smartphone, compatible with Android/iOS, connect the device through BT Function. After the print pen receive the picture, press the print key to start printing. 3. It adopts self-developed skin friendly ink, safe and gentle, washable, easy to clean. DIY pattern and tattoo on your arm, very cool and fun. Specification: Features: Portable and multi-functional print pen, easy to carry. Suitable for printing on surface of paper, , ceramics, metal, plastic, leather, composite material, T-shirt, skin. Download relative app "printpen" in your smartphone, compatible with Android/iOS, connect the device through BT Function. After the print pen receive the picture, press the print key to start printing. It adopts self-developed skin friendly ink, safe and gentle, washable, easy to clean. DIY pattern and tattoo on your arm, very cool and fun. The app supports hand drawing, and can also print words and sentences on skin, clothes, water cups, gift packaging and other objects. The brightness and contrast of the pattern/text can be adjusted. Built-in 1200mAh, 7.2V rechargeable battery. The ink cartridge is replaceable, we will give you a ink cartridge. Specifications: Print Pen Color: Silver Ink Cartridge Color: Dark Blue System Supported: Support Android/iOS Resolution: 300dpi Print Width: 26mm Ink Cartridge Usage: About 3500 times (standard printing) Battery Capacity: 1200mAh, 7.2V Item Size: 17.4 * 5.3 * 3cm / 6.9 * 2.1 * 1.2in Item Weight: 525g / 18.5oz Packing List: 1 * Print Pen 1 * Ink Cartridge 1 * Charging Cable 1 * User Manual Package List: 1 * Print Pen 1 * Ink Cartridge 1 * Charging Cable 1 * User Manual