1. Can connect to Artisan software directly by bluetooth or USB. 2. Can copy, modify and share roasting curves. 3. Capacity 500g~1.2kg. Satisfy cafe, office, or other commercial use. 4. Small size and light weight. Lower shipping cost. 5. Touch screen panel. Easy and safe operation. 6. Automatic chaff collection system. Self-cleaning. 7. Fast cooling system. 8. Double safety protection: anti-leakage safety plug + auto heating stop protection.