What's round and sits in the corner of your room spoon-feeding you Kanye West? If Sony has any say in the matter, it'll be the latest members of the SA-NSx family of wireless speakers. The three new models -- the 310, 410 and 510 -- come on the coattails of the firm's latest media players, and all come with built-in WiFi, AirPlay and that 360 degree design. As well as the wireless options above, there are apps for Android and PC, so non iOS users can keep the jams coming too. If you really want your music on the go, the 510 model also has a built-in battery for the extra portability. How much does all this fun and style cost? That'd be £150 (about $230) for the 310, £200 ($310) for the 410, rising to £300 ($470) for the 510. All of them available now.