You can spend like $20 on a hand mixer at K-Mart and it will work just fine. But, oh, this KitchenAid Pro Line cordless blender sure looks nice, and it seems up to just about any kitchen task.
The blender runs on a 12V rechargeable lithium battery and comes with three interchangeable blades -- S-shaped, multipurpose and a frother/beater. Want to change one out? They simply twist on and off. They can emulsify, beat, blend, puree, pulverise, whisk, whip and so forth. It also has removable 8-inch and 13-inch blending arms to give you some breathing room when you're working with a deeper pot, for example.