Dear peterI'm glad that you're interested in myinvention. Let me introduce it to youMy invention is a special bag. It was inventedlast month. It was made of a special material It's asheavy as a normal bag, but it's a little bigger. ThereWhen you press the redbutton. it isckpack. When you press thegreen one, it is used as a tent. What s more, it isusecharge your phones. You may wonder wherethe energy comes from, The answer to it is bodyeat. liars nteresting, rIg