Last week at Sony Ericsson's packed out Xperia Party event in London we briefly glimpsed the Mix Walkman in the crowd, holding hands with the Live with Walkman. We went over and said hello and took some hands-on snaps which you can see here.

We've just taken delivery of our Mix Walkman review model and unboxed the little guy before we get to know it better. We're keen to try out that much-talked about karaoke mode, as well as see how the Mix Walkman stands up as a music phone.

In the box you get some 3.5mm headphones which look pretty standard (not terrible, but not amazing either). But for £80 on pay-as-you-go, we weren't expecting Beats Audio headphones to come included.

A now-standard multi-part USB cable with a mains adapter with Sony Ericsson GreenHeart branding came with our review unit, along with a neon green trim that you can swap with the silver plastic band.

Have a look through at these quick What's in the box? shots and (again) these hands-on pics from last week.

The Sony Ericsson Mix Walkman is a pretty small phone. The browser also doesn't seem to display large images that well, but as the main USP of the Mix Walkman is its music playing features we can live with this.

You can swap the silver trim for this rubbery mint green one without having to turn the Mix Walkman off or take out the battery. Just pop off the battery cover, slide off the the old one and snap the new one into place.

Note the two external speakers on the back there. Most phones in the Mix Walkman's price range only come with one. The Walkman and Zappin hardkeys are down there at the front, sitting aside the 3.5mm connection.

Getting to know the ins and outs of the Mix Walkman's menus doesn't take that long; the UI is very similar to Sony Ericsson's custom Android interface and is easy to get to grips with. The chances of you ever having to refer to the manuals is pretty slim.

There wasn't a microSD card included in the box but we've put one in here as a size guide. The Sony Ericsson Mix Walkman can take cards of up to 32GB in size, so while the internal memory clocks in at a tiny 256MB you can easily scale this up.