Replacement helmet clamp kit for the Sena 30K Bluetooth Headset, 20S EVO Bluetooth Headset and the 20S Bluetooth Headset. Slim speakers are more accommodating in helmets that lack deep speaker pockets or have an overall tight fit.
Universal helmet clamp
Wired boom microphone
Speakers:?32mm diameter x?7mm thick will sit deeper within tapered speaker pockets than stock speakers