50S Communication SystemThe 50S now offers an even more premium audio experience with SOUND BY Harman Kardon. Both the speakers and microphone were created with the audio experts at Harman Kardon to provide world-class sound for one of Sena's most popular devices. Expertly crafted speakers and an all-new microphone allow the 50S to deliver an unmatched audio experience. The speakers send crystal clear audio to riders' ears while the microphone, with a newly designed sensor, provides robust performance for voice communication while riding. The new speakers offer a marked increase in audio quality surpassing that of any other motorcycle communication system on the market.Multi-language voice command supportDigital assistant accessA tried-and-true jog dial design50S Helmet Intercommunication system (Dual).