LEXIN B4FM Motorcycle Bluetooth Headset, 10 Riders Helmet Bluetooth Intercom
Quick take
The LEXIN B4FM is a helmet Bluetooth intercom designed for group rides, with support for up to 10 riders (best performance reported for smaller groups), plus Bluetooth music and 2-rider music sharing. It also aims to reduce road noise (active noise cancellation) and is built for wet conditions (IP67), but music and intercom performance can depend on wind/road noise and group size.
Pros and cons
Pros
- Long battery life for talk and music, with strong real-world longevity reported.
- Group intercom focus, with up to 10 riders supported (users often describe best results around a few riders).
- Music sharing for two riders, plus Bluetooth audio and FM radio.
- Weather-ready design with IP67 waterproofing and weather-resistant build.
Cons
- Music sound is described by some as limited in bass and more “tinny” than you might expect from premium audio gear.
- Voice performance and noise suppression can feel less consistent as group size increases.
- Hands-free features can still require button interaction for voice assistant activation.
What buyers think
Buyer-review evidence is strong that the B4FM prioritizes battery endurance and basic “works well on rides” reliability. Many users describe pairing as straightforward and intercom conversations as clear at highway and longer distances, especially in smaller rider groups. Music playback is viewed as functional for commuting and riding, with some riders satisfied with clarity at speed while others feel the bass is underwhelming compared to what they expected.
Noise cancellation is generally appreciated for improving conversation intelligibility, but a recurring theme is that road and wind noise (and group dynamics) can change how well the audio and noise suppression hold up.
Who this is for
- Group-ride commuters and trail riders who want intercom capability beyond one or two people, and want to keep music and calls in the same headset.
- Riders who value battery life and plan to ride multiple days between charges.
- People who ride in mixed weather and want IP67 waterproofing with waterproof ports and plugs.
- Helmets with open-face, flip-face, or full-face setups, since the unit includes two mic types (boom mic and button mic) for different helmet styles.
Who should skip it
- Buyers who expect rich, bass-heavy stereo audio from compact helmet speakers, because some feedback frames the sound as bright but lacking depth.
- Riders who frequently do large intercom groups, since multiple reviews suggest intercom behavior (clarity and noise suppression) can get less predictable as the number of connected riders grows.
- Anyone who needs fully hands-free voice assistant activation without any button presses, since some users report needing to press to trigger Siri.
Key features that matter on the road
10-way intercom range and group talk
The B4FM is built around group communication, supporting up to 10 riders, with stated “best for 4” performance and a maximum range of about 2000m (1.2 miles). Review themes align with this idea, where two-person and smaller group setups tend to sound more consistent, while larger groups can introduce intermittent audio quirks or changes in noise suppression behavior.
Music sharing and Bluetooth audio
Music sharing lets 2 riders listen to the same song using a double-click of the power button. For Bluetooth audio, some riders find clarity works well enough for podcasts and music during rides, and at least one review mentions comfortable listening on the highway. Others describe the speaker sound as more “tinny,” with less bass than you might expect.
Active noise cancellation and wind handling
Wind-resistant microphones and active noise cancellation are designed to reduce road noise impact on conversation clarity. In practice, buyers often report that conversation becomes clearer with added wind noise mitigation (for example, using ear plugs). Still, a few riders note noticeable road and wind noise at speed, which can reduce intelligibility for calls and music when riding conditions are loud.
Calls, voice assistants, and hands-free reality
The headset is intended for hands-free calls and supports voice assistant features like Siri via pairing. Some review evidence suggests that “hands-free” may not mean fully triggerless activation, since at least one rider describes needing to push a button to start Siri.
FM radio and practical audio options
FM radio is included, and at least one rider found FM clearer than Bluetooth audio in louder conditions. If you ride in areas where Bluetooth audio can feel strained by wind noise, this can be a useful fallback.
Weather resistance and battery life
IP67 waterproofing is a major selling point, with waterproof ports and plugs intended to help the headset function in wet conditions. Battery is another standout: the unit is rated for up to about 15 hours of music playback or talk, with standby time beyond a week.
Pros and cons recap
- Best strengths: battery endurance, reliable pairing, and solid intercom clarity in smaller groups.
- Main tradeoffs: music quality can be limited by compact speakers, and performance can vary more in larger group setups or noisier riding conditions.
- Smart fit: riders who want intercom + Bluetooth audio + FM, and plan to ride in real weather.
Verdict
The LEXIN B4FM is a practical pick for motorcyclists who want a weather-resistant helmet Bluetooth headset with real intercom capability for group rides and long battery life. If your priority is bass-rich music or perfectly consistent audio across big groups, you may find the tradeoffs frustrating. But for riders who ride often, use intercom frequently (especially with a few riders), and want a versatile audio setup, it is easy to recommend.
Price and availability
Pricing can vary by retailer and promotions. Check the latest listing for current price and shipping details.
FAQ
Is the LEXIN B4FM good for group rides with multiple helmets?
It is designed for multi-rider communication, supporting up to 10 riders. However, buyer feedback suggests performance is most consistent with smaller groups (often around 4 riders), while larger groups may introduce audio quirks or weaker noise suppression.
How is the music quality on the LEXIN B4FM?
Bluetooth audio is usable for music and podcasts, and FM radio may be clearer in loud conditions. That said, some reviews describe the speaker sound as lacking bass and sounding more “tinny,” so it is not positioned as a premium music headset.
Does it work in wet weather?
Yes, it has an IP67 waterproof rating and is designed with waterproof ports and plugs to help it handle diverse weather.
What about battery life?
Battery life is one of the strongest buyer-reported strengths, with many riders describing long periods between charges. The headset is rated for extended music or talk time and long standby time.
Will it fit open-face and full-face helmets?
It includes two microphone options, a boom mic for open-face or flip-face helmets and a button mic for full-face helmets, so it can be set up for common helmet types.
Is it fully hands-free for voice assistants?
It supports voice assistant use, but some riders report needing to press a button to activate Siri, so it may not meet expectations if you want voice assistant control without any button input.
Specifications
| Product Title | LEXIN B4FM Motorcycle Bluetooth Headset, 10 Riders Helmet Bluetooth Intercom, Universal IP67 Communication Systems with Music Sharing, Noise Cancellation, FM Radio, Fit for Snowmobile, 1 Pack |
|---|---|
| Category | Electronics > Car & Vehicle Electronics > Vehicle Electronics Accessories > Audio & Video Accessories > Bluetooth Headsets |
| Brand | LEXIN |
| Manufacturer | LEXIN |
| Model Name | B4FM |
| Model Number | LX-B4SP |
| Color | Blue |
| Brand Name | LEXIN |
| Built-In Media | Cable, User Manual |
| Age Range Description | Adult |
| Number of Items | 1 |
| Is Autographed | No |
| Headphone Jack | No Jack |
| Connectivity Technology | Wireless |
| Wireless Technology | Bluetooth |
| Bluetooth Version | 5.0 |
| Style Name | B4 SIngle Pack |
| Theme | TV Series |
| Unit Count | 1 Count |
| Impedance | 80 Ohms |
| Noise Control | Active Noise Cancellation |
| Audio Driver Type | Dynamic Driver |
| Frequency Range | 20 Hz - 20,000 Hz |
| Enclosure Material | Plastic |
| Specific Uses For Product | Music |
| Antenna Location | Calling, Music |
| Compatible Devices | Motorcycle headsets |
Available variants
Style
- B4 Dual Pack
- B4 SIngle Pack
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