Sonos has released two free software downloads allowing its home-networked audio players to be controlled from an iPhone and providing enhanced access to more than 15000 web radio stations.

The iPhone controller, available from Apple's App Store, allows you to control the music playing in any room containing a Sonos player.

Senior product manager Craig Wisneski said the company had made a point of ensuring that new software always runs on all of its legacy products.

Sonos System Software 2.7 comes with a new radio guide that allows you to search or browse for radio stations, and add any you like to a favourites list. It now supports the RTSP streaming protocol, expandings its radio coverage.

The company introduced two new products in August: the £349 Sonos ZonePlayer 120 (ZP120), its smallest player yet; and the £249 Sonos ZonePlayer 90 (ZP90), which allows existing home theatre and audio equipment to be controlled by the Sonos system. Both use the SonosNet 2.0 wireless mesh system, with double the range of the previous  version. A two-room system with both these devices pls a controller costs £699.