The entire 50 series of Sena is newly equipped with sound from Harman/Kardon. The new Sena Quantum series thus has more advanced speakers and microphones, which, according to the manufacturer, improves communication on the motorcycle. Voice control works with digital assistants and it is possible to choose between three different communication modes. For example, it is possible to communicate with a private group of up to 24 participants over a range of up to eight kilometers. Public groups can communicate with an unlimited number of users. In addition, the Sena devices have classic Bluetooth connectivity, allowing interaction with other devices.