Sena SRL-EXT 01 Motorcycle Bluetooth Intercom System (Shoei NXR2) The Sena SRL-EXT 01 motorcycle Bluetooth intercom system was custom‑designed for one of Shoei's most beloved helmets, the Shoei NXR2. The compact SRL-EXT offers both Mesh and Bluetooth intercom, as well as smartphone connectivity for music, GPS, phone calls and much more. SRL-EXT users will experience premium sound by Harman Kardon audio inside of their Shoei NXR2. Communication by Sena, protection by Shoei and sound by Harman Kardon. Motorcycle Helmet Bluetooth Intercom Features: GENERAL Main module dimensions: 108 x 44 x 20 mm. Main module weight: 48 grams. Speaker driver unit: 40 x 7.3 mm. Boom microphone length: 60 mm. Wire between speakers length: 360 mm. Operating temperature: -10–50 °C. MESH NETWORK Mesh intercom 3.0. BLUETOOTH Bluetooth 5.0. Headset profile (HSP). Hands-Free profile (HFP). Advanced audio distribution profile (A2DP). Audio video remote control profile (AVRCP). INTERCOM Bluetooth intercom range: up to 2 km in open terrain. Mesh Intercom™: up to 2 km in open terrain. Mesh can extend up to 8 km (5 miles) between a minimum of 6 riders. Bluetooth intercom connections: 4 riders. Open mesh intercom connections: virtually limitless. Group mesh intercom connections: 24 riders. FM RADIO Radio frequency specifications: 76 – 108 MHz. 10 pre-set station memory. AUDIO Noise cancellation: Advanced noise control™. Codec: Built-in SBC codec. Premium speakers & microphone with sound BY Harman Kardon. BATTERY Bluetooth intercom talk time: 16 hours. Mesh Intercom™ talk time: 12 hours. Charging time: 2.5 hours. Type: Lithium polymer battery. CERTIFICATES CE. FCC. IC. WARRANTY 3-Year warranty. MESH & SOUND BY Harman Kardon DESIGNED FOR SHOEI HELMETS The SRL-EXT was tailored specifically for the SHOEI NXR2 helmet. The shape of the SRL-EXT main module and external battery are curved to match the exterior curves of the NXR2. The SRL-EXT main module is installed on the left side of the helmet, while the external battery adheres to the right side of the helmet. HANDS FREE CONVENIENCE WITH SENA’S VOICE COMMANDS Convenient voice commands allow you to control the SRL-EXT’s system functions, such as answering the phone or starting up a Group Mesh session. The SRL-EXT supports voice commands in eight languages: English, French, German, Spanish, Italian, Chinese, Japanese, and Russian! Looking for a bite to eat? “Hey Google, directions to the nearest sandwich shop.” The SRL-EXT easily connects to Google Assistant and Apple’s Siri with a simple voice command allowing you to tap into the power of your smartphone’s features, including GPS navigation, music playback, voice dialling, plus a variety of other digital assistant features. MESH & BLUETOOTH® INTERCOM The SRL-EXT offers both Mesh Intercom™ and traditional 4-way Bluetooth® intercom, allowing for compatibility with any Sena or Sena-powered device. Sena’s industry-leading Mesh Intercom™ communication platform has two modes: Multi-Channel Open Mesh Intercom™ (Open Mesh) and Group Mesh Intercom™. Open Mesh offers a single push of a button to click-to-connect to the Mesh Intercom™ network and features the industry’s first Mesh Intercom™ channel system. Like standard handheld or CB radios, Open Mesh lets users switch between 6 channels. It also supports a near-limitless number of users within a range of up to 5 miles / 8 km (min. 6 riders @ 1 mi / 1.6 km intervals). Group Mesh supports a single, private group for up to 24 participants and the same range as Open Mesh for a more intimate group conversation. Only invited users can join the Group Mesh chat. Open Mesh and Group Mesh provide unprecedented intercom audio quality and robust connectivity. SOUND BY Harman Kardon The SRL-EXT’s speakers and microphone were created with the audio experts at Harman Kardon to provide world-class sound inside your SHOEI helmet. Expertly crafted speakers and an all-new microphone allow the SRL-EXT to deliver an unmatched audio experience. The speakers send clear audio to riders’ ears while the microphone, with a redesigned sensor, provides robust performance for voice communication. Users will be able to switch between the wired boom microphone and the wired microphone. Experience SOUND BY Harman Kardon inside of your SHOEI helmet with the SRL-EXT. READY FOR ADVENTURE WITH SENA APP Customize a variety of settings on your Sena device with the Sena Motorcycles App. Configure channel settings for Open Mesh or set a private group for Group Mesh. Explore all-new soundscapes with the EQ presets and give the audio a boost. Connect your Sena headset to your phone in the Bluetooth settings menu and get the most out of your adventures.