SENA communication, SHOEI protection, and Harman Kardon sound. The SRL-EXT was designed specifically for one of SHOEI's most popular helmets, the NXR2.

The SRL-EXT offers Mesh and Bluetooth intercom and smartphone connectivity for music, GPS, phone calls, and more. SRL-EXT users will enjoy premium Harman Kardon sound inside their SHOEI NXR2. The SRL-EXT includes premium features such as:

SOUND BY Harman Kardon speakers and microphone
Specially designed for the SHOEI NXR2
Bluetooth 5
Mesh Intercom™
Bluetooth® 4-way intercom
Digital assistant access
Advanced Noise Control™

The SRL-EXT was designed specifically for the SHOEI NXR2 helmet. The SRL-EXT main module and external battery are curved to fit the surface of the NXR2. Users have the option to mount the SRL-EXT with a clip or an adhesive mount. The SRL-EXT main module mounts on the left side of the helmet, and the external battery pack on the right side.

The SRL-EXT speakers and microphone were designed in collaboration with audio experts at Harman Kardon to deliver premium sound to your SHOEI helmet. Expertly crafted speakers and a brand-new microphone allow the SRL-EXT to deliver an unparalleled audio experience. Audio transmitted through the speakers is clear and crisp, and the microphone, thanks to a specially designed sensor, ensures solid performance. Users can choose between using the boom or wired microphone. Experience Harman Kardon sound in your SHOEI NXR2 with the SRL-EXT.

The SRL-EXT offers both Mesh Intercom™ and traditional 4-way Bluetooth intercom, allowing connection to any Sena or Sena-powered device. The Mesh Intercom™ communication platform has two modes: Multi-Channel Open Mesh Intercom™ (Open Mesh) and Group Mesh Intercom™.

Open Mesh is the industry's first multi-channel Mesh Intercom™ system. Like standard handheld or CB radios, Open Mesh allows riders to switch between nine channels. With Open Mesh, simply press a button to connect to the Mesh Intercom™ network and support a virtually unlimited number of users within a range of up to 5 miles (8 km) (minimum 6 riders at 1 mile intervals).

Group Mesh supports a single private group of up to 24 participants, with the same range as Open Mesh, except that only invited users can join the Group Mesh chat. Open Mesh and Group Mesh provide unprecedented audio quality and robust connectivity.

Voice commands allow you to control SRL-EXT system functions, such as answering the phone or starting a Group Mesh session. The SRL-EXT supports voice commands in eight languages: English, French, German, Spanish, Italian, Chinese, Japanese, and Russian.

Want to stop for lunch? "Hey Google, directions to the nearest rest stop." The SRL-EXT can connect to Google Assistant and Apple's Siri with a simple voice command, allowing you to take advantage of your smartphone's features, including GPS navigation, music playback, voice dialing, and a variety of other options.

The Sena Motorcycles App offers users a way to visually configure their device settings. Download the app to customize various settings and features, including the ability to remotely manage Open Mesh channel settings or set up a private group for Group Mesh. Download the Sena Motorcycles App from the App Store or Google Play.