1. APP: Phomemo 2. APP language: Chinese, Traditional Chinese, English, Japanese, Korean, Thai, French, German, Spanish, Portuguese 3. Printing resolution: 203DPI 4. Effective printing width: 53mm 5. Battery capacity: 1000mAh 6. Operating system: Android 4.0 / IOS 8.0 and above 7. Connection method: Bluetooth 8. Printing media: thermal paper 9. Material: ABS, metal 10. Weight: about 190g 11. Dimensions: approximately 8.6 x 8.2 x 4.2cm Features: 1. Bluetooth connection, easy printing from mobile phone 2. No ink required, easy to operate, environmentally friendly and durable 3. Exquisite, compact and easy to carry 4. Can print pictures, text, wrong questions, and supports label printing of various specifications. 5. Multiple materials, a large number of APP templates, handbook materials, and printing templates