The new HD Speakers by Sena were designed to deliver crisp communication sound quality and a premium music listening experience. With a stunning increase in volume and bass boost, these all-new HD speakers will rock you! The speakers incorporate a low-profile bevel, reducing potential ear-to-edge chafe, and as always, easily fit into existing helmet speaker pockets. Sena has also developed new firmware for the 30K, 20S EVO, and 20S, which will allow you to get the most out of the new HD Speakers. Additionally, your Sena device’s mobile app has been updated to enhance the output of the HD speakers, including new Audio EQ Presets. So be sure to take advantage of both of these updates in order to experience everything the new HD Speakers have to offer!