This LG fridge packs a set of speakers

At $4,000, the LG LFXS30786S is a king-size fridge with a Door-in-Door compartment and clever set of Bluetooth speakers hidden behind the door.

The control panel plays it safe with white LED digits that should blend right into most kitchens.

Inside, you'll find 29.6 cubic feet of storage space, 19.5 of which are allocated to the fridge compartment.

You have to open an extra door to get to the Door-in-Door shelves from the inside of the fridge. It's also the one part of the refrigerator that feels flimsy.

It's also a bit of a tight fit getting large items in and out of that top shelf.

Up on the front of the refrigerator's upper rim is a Bluetooth speaker.

The speaker runs the near width of the fridge.

To use it, just press the one button. A light will begin to flash, and you'll be able to pair with the fridge on your phone or tablet.

Once you do, you'll be able to stream music or podcasts through the refrigerator's speakers. Audio quality is surprisingly good.

The ice maker is located entirely within the left door. That frees up space inside of the fridge, and the flat design does a good job of not blocking off the door shelves. It makes a little less ice than average, though.

The drawer at the bottom of the fridge glides in and out easily, and offers three separate temperature presets: Meat, Produce and Deli.

The drawer-style freezer keeps it simple, and offered strong performance in our tests.

Speaking of performance, here are the average temperatures in each section of the fridge when it's at the default setting of 37 degrees. The main body shelves were nearly perfect, and the drawers and left door did a nice job, too. The Door-in-Door compartment ran a bit warm, though.

Here's the graph of that same test. Temperatures held very steady through the entire 72-hour run, even during our regularly scheduled door openings.

We repeated our tests at the coldest setting of 33 degrees F. Again, the fridge performed very well -- and this time, the Door-in-Door compartment fell below 40 degrees F. That's a good result.

At $4,000, this LG fridge sure isn't cheap, but between the size, the speaker, and the Door-in-Door compartment, it has a lot to offer. Read our full review to see if it's worth the splurge.