Griffin’s Aircurve… will want to hear to know for sure – it could go either way – watch for a full review soon. The concept to use air tubes to amplify the built in iPhone speakers is interesting. No need for batteries or power (extra item you can buy adds on a USB to charge the iPhone). You are still just expanding the speaker built in limited speakers so music will be a little fuller and louder. Making the speakers ‘louder’ could help with using it as a speaker phone, as long as the Mic isn’t blocked.