Sample coffee roaster, Micro coffee roaster, capacity: 100 -450 gram Power: AC 10W Heater: Infrared tube Multi-layers filter to filter dark smoke and bad smell Built-in microto detect coffee bean crack sound automatically Built-in camera to detect coffee bean roasting level(Agtron automatically Mobile App control, iOS/Android, ease of use Main parts are ease-of-removable, easy for maintenance and clean