Sonos with Bluetooth Audio Wireless?

Hello there,

I've a Sonos system and I would like to use it as a wireless speaker for my Mac Mini.

At this moment I've this one and it's working 80% of the times, but sometime it conflicts with TrackPad causing a heavy lagging of the mouse arrow.

http://www.amazon.co.uk/Creative-Wireless-Receiver-Streamer-Enhancement/dp/B002U 0KA7Q

Do you have an alternative to suggest me?

Thanks!