The Heil RC 35 is the wireless version of the Heil PR 35 wired microphone. It incorporates many of the PR 35's features, including the same capsule, the same internal floating suspension, and excellent rear noise rejection. The RC 35 represents a significant upgrade to your current wireless system and will instantly bring more warmth, richness, and quality to your sound. Compatible with most Shure, Sony, Lectrosonics, and Line 6 wireless systems with removable capsules, it is also compatible with certain Sennheiser systems via the appropriate adapter (see ambient.de for the list of adapters and compatible systems).