portable blender?
I have two of the Hamilton Beach blenders and found they do okay with frozen strawberries at first, but then they stop being able to do them after a while. I assume the blades get duller as you use it. I have a big blender at home that I use to crush ice and I take it to work in a small 6-pack cooler and make protein coffee with the small HB blender and poor it over the crushed ice. That works well for me.