Great intercom system - ideal for what we do, at a very realistic price. Although there is now the 'pro' version (with noise reduction), these are absolutely fine in a typical conference environment or TV shoot. The only downside really (given the product is excellent) is that a base station is required in order to insert a line level programme feed, which would certainly be a nice to have. For us, this is price prohibitive 'upgrade' (if that's all you need it for).