Advanced air flow design. Stainless interchangeable 6" and 7 1/2" blades. Features quite, long lasting motor. Two rechargeable battery packs - each with up to 30 minutes of battery life. Smart Charge Battery Base - when fully charged unit deactivates to protect battery. Power Up battery charger base recharges battery to full charge in 3 hours and 45 minutes. Auto Shut-off green light turns on when fully charged and ready to use. Longt power cord. Packaged in compact hardshell travel case with white plastic cutting board.