The entire 50 series from Sena has been newly equipped with sound from Harman/Kardon. The new Sena Quantum series features advanced speakers and microphones, which, according to the manufacturer, improves communication while riding a motorcycle. Voice control works with digital assistants, and users can 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 allow communication with an unlimited number of users. Additionally, Sena devices come with classic Bluetooth connectivity, enabling interaction with other devices.

For the new model 50C, Sena combines the 50S model with the 4K action camera from the 10C EVO. MicroSD cards with a maximum capacity of 128 GB and U3 or higher cards are compatible.