The same features that made the 20S the world’s most beloved Bluetooth communicator are still present in the 20S EVO. Use the updated intercom function to chat with up to eight other riders up to a more secured 2 km (1.2 miles) range, through the Group Intercom™ feature. The 20S EVO still delivers HD-quality audio that’s clear, precise, and comfortable in every condition. Sena’s Advanced Noise Control™ ensures ambient noise doesn’t interfere with incoming and outgoing audio. Bluetooth 4.1 technology, high-quality stereo Bluetooth speakers, and dual-module architecture create a smooth, crisp, and responsive user experience that the 20S is known for.