If you are looking for a multifunctional smartphone case with a few more features then you might be interested in a case that was released on the Indiegogo crowdfunding website.
Called the BB Case, it has been designed to extend the battery of your iPhone with a built-in 2,450 mAh Li-ion battery, while providing you with easy access to a Bluetooth headphone, that sits right into the case and can be taken out when you need it.
They have already raised well over their set $50,000 goal, with over $60,000 in funding at the time of writing. Anyone who pledges from $69 will get a pre-order for the device.
Check it out and back it at the source link below.