Video Explainer needed for website

I need a video explainer made about our product which we want to show on our new website. It needs to be about 1 minute long. We need everything done, from the script to the animation to the voiceover. I will obviously provide a brief and have a good idea of what we want.
I will explain more detail about the product to the winner.

Please let me see a few example of explainers you have done. We will also require the video ASAP.

We are a new start up, so funds are tight and have between £300-£350, but everything going well we will need a few more made.

Thanks