The X1S Bluetooth® cycling helmet packs features that enhance your commute. Bluetooth 4.1 allows riders to listen to music, GPS navigation, answer phone calls, and even receive data from fitness apps through built-in HD quality speakers. The helmet also features a built-in FM radio and a fully integrated Bluetooth communication system. This latter feature allows rider-to-rider intercom conversations with up to three other Sena Bluetooth users within a distance of 900 meters. And with Sena’s patented Advanced Noise Control™ technology, wind and white noise is filtered out, leaving pristine incoming and outgoing audio.