RRP is £34.99. Release date is March 20th. I think these are going to be hot, hot, hot! Play.com also has them for pre-order but at £29.99; can't find them for pre-order anywhere else yet.
Note: this is just the microphones and does not come with any game
"Unleash your inner SingStar with new Wireless Microphones
Feel total freedom as you sing, dance, and perform wire-free with new Wireless SingStar Microphones
Compatible with PlayStation2 and PLAYSTATION3
Coinciding with the launch of brand-new SingStar Pop Edition
Get ready to unleash the SingStar within - with the launch of brand-new Wireless SingStar Microphones from Sony Computer Entertainment Europe (SCEE). Rated as excellent by the SingStar community, Wireless SingStar Microphones will have you and your friends performing from couch to table-top - completely leads-free! Coming to UK stores on 20th March, the launch of Wireless SingStar Microphones coincides with the release of SingStar Pop Edition for PLAYSTATION3 (PS3)
With full focus on the SingStar community, SCEE asked community members to trial the new Wireless SingStar Microphones and offer their feedback. An amazing 99% of participants rated their microphones as excellent or very good, while SingStar community member Stuart from the UK said Wireless Mics kick ass! Dave Ranyard of Executive Producer of the SingStar franchise says Were excited with the communitys response to Wireless Mics. Now SingStars can enjoy their experience wire-free and test them out with the exciting launch of SingStar: Pop Edition along with hundreds of new tracks in SingStore. Were looking forward to seeing your brand-new wireless videos at My SingStar Online or http://www.singstargame.com.
Easy to pass around or keep to yourself; Wireless SingStar Microphones are lots of fun and easy to use. Test them out with brand-new SingStar Pop Edition, with brand-new voice control feature. Unleash some attitude with P!nks So What? Then grab your best mate for a pop duet with Jordin Sparks feat. Chris Browns No Air , rock out with Bon Jovis Livin on a Prayer or perform a sexy solo with Sam Sparros Black and Gold."