Design me a Product

Our product has been prototyped using a JBL Clip+. We simply removed the front speaker piece, and used a 3D printed cover. Our final design will be extremely similar to this. We are looking to get the product made out of a strong plastic, maybe ABS. It would need to be something strong enough to handle the impact of a ball or something hitting it. We need a built in carabiner design similar to this, only stronger. The carabiner design of the HMDX Hangtime speaker is plenty strong enough. So basically we need something made with the same carabiner strength as the HMDX hangtime, but with the same size and shape of the JBL Clip+. We have electronics that will go inside the case. No outer buttons are needed, only a hole at the bottom for the micro-usb port, as seen in the JBL Clip+. Below are the links to both speakers. If needed, we can compensate the designer to purchase one of each of these speakers as well. Again, we are NOT building a speaker. We only need a plastic case in this same shape as the JBL Clip+ that has the built carabiner clip and a micro-usb at the bottom. Our electronics will go inside. I have images, specs, and design files for your viewing once we can agree on a price and sign an NDA. We would like a ballpark estimate for this project, and if the price is right then we can discuss it further. Thank you, and I look forward to hearing from you. Links: http://www.jbl.com/bluetooth-speakers/JBL+CLIP+[login to view URL] [login to view URL]