The all-new Impulse is a modular smart helmet featuring Sena’s industry-leading Mesh Intercom™ and Bluetooth® Intercom technology, plus premium speakers and microphone by the audio experts at Harman Kardon. With the help of Harman Kardon, the Impulse’s expertly tuned speakers bring a new level of precision and clarity to in-helmet audio, and an all‑new microphone delivers unprecedented outbound audio quality. The helmet boasts an integrated rear-facing taillight for rider visibility and a convenient retractable sun visor.
Impulse was built with a DOT and ECE-rated – dependent on region – composite fiberglass shell with an intermediate oval fitment. Four strategically placed vents, a chin vent, a top vent, and two exhaust vents allow airflow while riding.

  • SOUND BY Harman Kardon
  • Mesh Intercom™
  • Bluetooth 5.0
  • Multi-Channel Communication
  • Retractable Sun Visor
  • LED Taillight

    The Sena Impulse offers an unmatched audio experience with SOUND BY Harman Kardon. Both the speakers and microphone were created with the audio experts at Harman Kardon to provide world-class sound inside of this motorcycle helmet. The Impulse’s interior design was optimized by Sena to provide plush acoustic dampening for the SOUND BY Harman Kardon speakers. The precisely placed premium speakers and interior acoustic design combined with the all-new microphone allow the Impulse to deliver an UNPRECEDENTED motorcycling auditory experience. The speakers send crystal clear audio to riders’ ears while the microphone, with a newly designed sensor, provides robust performance for voice communication while riding.


    Impulse features both Mesh and Bluetooth® Intercom platforms, allowing users to connect with any Sena headset for rider-to-rider communication. Mesh Intercom brings robust, reliable connections and flexible intercom message routing with significant enhancements to Sena’s Mesh algorithm. Mesh offers an unprecedented level of intercom audio quality with two Mesh settings, Multi-Channel Open Mesh Intercom™ and Group Mesh Intercom™.

    Multi-Channel Open Mesh Intercom (Open Mesh) features the industry’s first Mesh Intercom™ channel system. Similar to standard handheld or CB radios, Mesh allows users to switch between nine channels when operating in Open Mesh mode. Open Mesh offers a simple, single push of a button to click-to-connect to the Mesh intercom network. 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).

    For a private group conversation, Impulse offers Group Mesh Intercom mode. Group Mesh supports a single, private group for up to 24 participants and the same range as Open Mesh. To ensure privacy, only invited users can join the Group Mesh chat.

    Traditional four-way Bluetooth® Intercom mode continues to be an option for connecting the Impulse to other Sena Bluetooth-enabled users within a 1.2-mile range. Additionally, users can pair with a Sena Bluetooth Intercom user and ‘bridge’ them into a Mesh 2.0 intercom conversation.


    Impulse is packed with features, including Sena’s first-ever integrated motorcycle helmet LED taillights for additional rider visibility. The DOT- or ECE-rated (dependent on region) Impulse was engineered with a convenient modular helmet design and a lightweight composite fiberglass shell. The helmet’s four-way ventilation system offers airflow from vents on the top of the helmet, the chin, and two exhaust vents. The helmet features a retractable sun visor to protect riders from excessive glare. Impulse is Pinlock® ready with a Pinlock® anti-fog lens included in the box. The micro ratchet chin strap keeps the helmet comfortably and securely in place throughout the ride.


    Voice Commands allow riders to speak directly to their Impulse helmet while keeping their hands safely on the handlebars. Take control of the Impulse’s functions, like answering the phone or starting a Group Mesh session. Impulse supports Voice Commands in 8 languages, including English, French, German, Spanish, Italian, Chinese, Japanese, and Russian.

    Digital assistant access allows the Impulse to connect to Google Assistant and Apple’s Siri with a simple voice command enabling you to tap into your smartphone’s features, including GPS navigation, music playback, voice dialing, and more. All you need to do is ask: “Hey Siri” or “Hey Google”! Running low on gas? “Hey Google, please give me directions to the nearest gas station.”


    Impulse features an all-new charging system that operates using a magnetic pogo connection. The new charging port, located in the rear of the helmet, is securely sealed and offers improved protection from the elements while riding. Impulse offers a talk time of 10 hours while using Mesh Intercom™ and up to 18 hours while using Bluetooth intercom. Impulse features a built-in wifi circuit that provides automatic firmware updates while charging. Users will no longer need to use the Sena device manager to update the device’s firmware.


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.


Impulse features an intermediate oval fitment, and is available in sizes S, M, L, XL, and XXL in Matte Black and Glossy White.

Matte Black
Glossy White


  • Wrap a soft, flexible measuring tape horizontally around your head 1 inch above your eyebrows and ears. Pull the tape softly snug, read the length and repeat for accuracy. Use the largest measurement.
  • Select the helmet size that is closest to your head measurement from the size chart below. If your head measurement falls between two helmet sizes, it is suggested to go with the larger size.
Size Head (Centimeters) Head (Inches) Hat Size
S 55   –   56 21  1/2   –   21  7/8 6  7/8   –   7         
M 57   –   58 22  1/4   –   22  5/8 7  1/8   –   7  1/4
L 59   –   60         23   –   23  1/2 7  3/8   –   7  1/2
XL 61   –   62 23  7/8   –   24  1/4 7  5/8   –   7  3/4
XXL 63   –   64 24  5/8   –   25          7  7/8   –   8         


  • SOUND BY Harman Kardon

    Unmatched audio experience with premium SOUND BY Harman Kardon speakers and microphone.

  • Mesh Intercom™

    Robust & reliable communication network.

  • Bluetooth 5.0

    Compatible with the latest Bluetooth 5.0 platform.

  • Multi-Channel Communication

    Communicate with different groups across 9 channels.

  • Retractable Sun Visor

    Integrated tinted visor provides sun glare protection.

  • LED Taillight

    Integrated rear light with three brightness settings.

  • Multi-Language Voice Command

    Control your Sena device with your voice across 8 languages.

  • Digital Assistant Access

    Access smartphone features with the phrases "Hey Siri"/"Hey Google".

  • Sena Smartphone Apps

    Allow you to configure device settings, access the User's Guide, and more.

  • WiFi Firmware Updates

    Automatically downloads and installs the latest firmware when connected to WiFi.



    - DOT: 1,760 g (62 oz) ± 50 g (2 oz) (M size)
    - ECE: 1,720 g (60 oz) ± 50 g (2 oz) (M size)

    Operating Temperature: -10 °C – 55 °C (14 °F – 131 °F)


    Size: S / M / L / XL / XXL
    Color: Matte Black / Glossy White

    - Composite fiberglass shell
    - Quick-release system
    - Scratch resistant
    - UV resistant
    - Pinlock ready
    - Pinlock 120 max vision

    Comfort/Center Liner and Cheek Pads:
    - Removble & washable
    - Breathable
    - Quick dry liner
    - Laser-cut foam
    - Chin curtain
    - Breath deflector

    - Steel quick release buckle
    - Reinforced chin strap
    - Reflective safety patch
    - Multi-density EPS
    - Neck roll

    Ventilation System:
    - Top vent
    - Chin vent
    - Exhaust port

  • WIFI

    IEEE 802.11 b/g/n
    Working Distance: within 10 meters


    Bluetooth 5.0
    Headset Profile (HSP)
    Hands-Free Profile (HFP)
    Advanced Audio Distribution Profile (A2DP)
    Audio Video Remote Control Profile (AVRCP)


    Working Distance:
    - Bluetooth Intercom: up to 2 km (1.2 miles) in open terrain
    - Mesh Intercom™: up to 2 km (1.2 miles)* in open terrain
    *Can extend up to 8 km (5 miles) between a minimum of 6 riders

    Supports up to:
    - Bluetooth Intercom: 4 riders
    - Open Mesh Intercom: virtually limitless
    - Group Mesh Intercom: 24 riders

    Supports Channels:
    - Open Mesh Intercom: 9 channels


    Advanced Noise Control™
    Built-in SBC Codec
    Wide volume control
    Sample rate: max. 48 kHz (DAC)
    Premium Speakers & Microphone with SOUND BY Harman Kardon


    Built-in FM radio with RDS AF (Radio Data System Alternate Frequencies)
    Radio region: worldwide
    Radio frequency specifications: 76 – 108 MHz
    10 preset station memory with automatic scan function


    Talk Time:
    - Bluetooth Intercom: up to 18 hours
    - Mesh Intercom™: up to 10 hours

    Charging Time: 2.5 hours
    Charging Temperature: 0 °C – 45 °C (32 °F – 113 °F)
    Built-in 1,300 mAh Lithium polymer battery


    Electronics: CE, FCC, IC, KC
    Helmet: DOT, ECE 22.05, homologation P
    *Impulse is available with DOT or ECE ratings, each version sold in their respective regions


    Electronics: 3 years
    Helmet Integrity: 5 years


Get answers to your questions, read product-specific FAQs, and watch videos that will help you master the functions and features of your Sena product.