This Sharp Carousel II Convection Microwave has a build date of January 1989 and continues to work well. Having a convection option in the late 80's was an advanced feature in addition to the various microwave cooking modes. This was purchased new back in 1989 and lately has been the backup microwave or when we need an additional oven. The convection operation engages a high-speed fan to accelerate cooking or when you need to crispen your dish. First $150 takes it!