1. Support GSM 2G/3G, Wifi, Bluetooth, GPS
2. With 3.75V low-power printer, longer endurance
3. With 1.5W high power speaker
4. Innovative, all-in-one design, highly recognizable
5. Expandable storage, no need cleaning cache
6. With fixed-focus camera, for identify QR code
7. Integrated sensors, for environment self-adaptation and better user experience
