With the sonic blade, you don't get ragged edges, uneven cuts, or smashed food. It makes it easy to carve meat, cut sandwiches, and even slice cake and brownies Without crumbs or compression. The three blades account for all your kitchen cutting needs. With a long life rechargeable battery you can use the sonic blade anywhere BBQ, patio, even fishing and camping. This is a great knife that makes doing everythingin the kitchen easier. 1. Rechargeable battery operated 2. Light weight and bio-ergonomically engineered body, Easy to use anywhere 3. For slicing meat, bread, cheese, pizza, for making salad, for filleting and any kitchen cutting and slicing work 4. With two pairs of blade, a Ni-Hi battery pack and a charging block