With the Wireless Speaker Adapter, you can pair your Nexus 10 up to it via Bluetooth, and it’ll output that signal to the speakers you have connected to it. It takes your standard left and right audio RCA cables, or a 3.5mm jack to accept speaker or even receiver connections.
A good use for this is if you’re sitting in your living room, using your Nexus 10 to browse the web or read, and you also want to control music playing through your home entertainment setup. You can do this without being tethered to a wire, or having to stick your tablet on some sort of dock setup. It’s completely wireless, so you’re free to move about in a 30 foot radius from the device.
The device itself is rather small, so you shouldn’t have a problem placing it anywhere around your system.
I think this is a great deal for people who have a specific need for a device like this. It’s very convenient and priced very competitively, so go check this thing out today!