1. Wireless distance: 10 meters 2. Dual microphones: pickup + noise reduction 3. Support: android4.3 or higher, and ios7 or higher 4. Voice recognition distance: 1 meter 5. Multilingual: 45 languages 6. With text input translation function 7. Self-contained photo translation function 8. Realize remote online dialogue translation 9. Recording conversion text, recording conversion text plus translation function