Features: brand new and high quality 203DPI resolution, clear print quality. Built-in 1000mAh rechargeable battery, working in low noise, the thermal printer does not need ink cartridge when using. Can be used for work plans, memo lists, daily calendars, meeting notes,study, office, home and travel. etc. Mini cute design and lightweight body can be put in a pocket or bag for easy carrying. Save for time to copy notes by hand, help learning, improve learning efficiency, and print quickly. Support multiple functions, collect the exercises you have done wrong, fun and practical. Specifications: Color: Black/Green/Pink/White (Optional) Battery: 1000mah Lithium Interface: 5V, micro USB Connection: Bluetooth-compatible 4.0 Support System: for iOS 8.0 + Androids 4.0 or above Paper Type: Thermal Paper Connection: BT Connection Interface: Micro-USB Print Resolution: 203DPI Paper Format: 53mm/2.08in Printer Size: 9X8X4cm/3.54X3.15X1.57in Package Weight: 190g Package Includes: 1 x Thermal Printer 1 x Thermal Paper 1 x USB Cable 1 x User Guide note: Due to the problems of lighting effects and shooting angles, there will be certain tolerances in the product, please understand. Please allow 0-1cm error due to the manual measurment.