Sena SRL2

The SRL2 uses the same chipset as the 20S Evo though its quoted range is slightly less thanks to an internal, rather than external, antenna. It has the same features and also works with the Sena smartphone app and optional remote controls. Firmware can be updated via computer.

2 2 Speakers snap snugly into custom-designed apertures in the relevant helmets

1 1 Main controls based on three buttons and a combination of pushes, as well as by voice

3 3 Microphone sits in specifically-designed aperture with wiring run in channels