Specifications include, but are not limited to: 1. New and unused equipment 2. Ergonomic design 3. Low noise levels 4. One button emergency shutdown 5. Ability to be operated from a sitting or standing position 6. Design eliminates double feeding by way of an automatic double feed detector or another mechanism 7. Belt infeed with variable speed control 8. Ability to prevent loss of envelope contents 9. Space for receiving tray to place envelope contents in as they are separated from envelope 10. Opens envelopes by slicing, cutting or milling at least two sides of the envelope 11. Cutting mechanism can be adjusted and fine-tuned to reduce content slicing 12. Ability to accommodate 6 x 9 inch envelope as primary envelope size with the potential to accommodate other envelope sizes manually or automatically 13. Ability to detect the thickness of an envelope 14. Ability to jog envelop content to avoid slicing 15. Standard and mixed mail capability 16. Trim is discharged into trim box in base of equipment 17. Automatic high capacity stacker