1. Material: plastic, electronic components 2. Drive mode: electric 3. Power source: USB power supply 4. Charging interface: 5V-MicroUSB 5. Connection method: Bluetooth BLE4.0 6. APP mode: support Android 4.4.4 and IOS8.0 and above systems 7. Built-in battery: 1000mAh lithium battery 8. Development method black and white 9. Color: blue, pink, green, white 10. Size: 9.3x8.9x4.1 cm 11. Weight: 149.5 g 12. Features: simple operation, clear printing, compact and portable
