The Stilo WRC Series Intercom Systems were designed to be securely installed on the roll bar, where it’s easy to reach and convenient to adjust. They plug directly into your Stilo helmet with the included IMSA cables for clear, pitch-perfect audio while on track. The WRC Series feature an automatic on/off switch controlled through co-driver plug connection. No more starting races disconnected! It comes with individual volume adjustment for each connected helmet and 9-volt battery standard and 12 volts available as option. Camera and/or radio connection is also possible with these units. The WRC-DES includes an advanced noise-canceling “extra filter,” which effectively eliminates background noise to make driver/co-driver communications clearer than ever! For more advanced communication needs, the DG-10 includes noise-cancellation as well as a Bluetooth connection for simplicity at its finest. $285.