HJC 21B Smart Intercom
Bluetooth communication system that supports 21B compatible HJC helmets with 4-way intercom function
DetailsSelect an option
Get a price match
Verified Customer Reviews for HJC 21B Smart Intercom
So I have been using the Cardo PacktTalk Bold. The integration in to the R-PHA 91 is very simple. The buttons are very easy to use with anything other than winter gloves, and it's simple enough to learn the button combos for day to day operation.
With the Cardo I found I was having to charge it every 160-ish miles. I've done 500 miles and still have 50% battery on the 21B.
The Cardo definately sounds better, but to be fair, the speakers on the 21B are perfectly fine and you won't find yourself wincing at them; they just don't compare to JBL.
Better than the Cardo I've been using. Fit into a HJC i9 was easy and great fit, no pressure from the speakers. Connection was instant and sound quality is excellent. Button actions take a little time to get used to, but that's to be expected.
Great piece of kit really clean and easy to fit and looks discreet by being integrated.
Nice and easy to fit,works as it should.
Found the button mic works nicely, wasn't sure about it at first but it's better than a boom mic
Relatively easy to fit (cables are a little fiddly to get tucked away). Can't even feel that the speakers are there, I can sit ar home with the helmet on full volume and it doesn't hurt so it can't go mega loud - not sure this would give clear sound on mega windy days but I've had no issues so far. I opted to use the button mic as the boom one kept getting caught on the chin flap & according to my wife it's very clear when we talk on the phone, there's minimal wind noise that gets through on her end. Would definitely reccomend, especially at the £160 ish sale price.
Really easy install. Good sound quality and connects quickly to my phone.
The headset works ok but the speakers let it down and because they are wired in to the loom you can't change them, they are a doddle to fit into helmet though ever so neat.
Bought to fit in a new RPHA91 helmet, the fitting is simple and straightforward, it's neat and discrete on the helmet.
Speakers are good with high volume, no problem hearing. the helmet is a flip up and I hate boom mics so I used the small button mic and tucked it into the cheekpad liner, it's invisible and still seems to work fine (that's a neat touch, 2 different mics supplied).
Setting up is easy enough pairing to a phone and tomtom, although the automatic connection to the satnav can take a while to get going. Instructions are clearly heard at "at least" motorway speeds. I've yet to take a call while riding or connected to other riders so I can't comment on those features, I will if I can edit my review later.
A quick simple and secure fit to HJC helmets. I really like the way the helmet has dedicated recesses and channels to accommodate the comms system. It's made by SENA and the operation and configuration is identical to the SENA 10R. Very easy to use with gloves on. I had no problems connecting with up to 4 other riders on different comms systems. Download the HJC smart app to your phone and simply scan a QR code of the other riders to link up. I find the sound system very good and plenty loud enough to have a conversation at motorway speeds and the battery lasts all day. I also thought it was excellent value for money. I've used other more expensive comms systems and this stands shoulder to shoulder with less bulk and matching sound quality. It suits my needs very well indeed, so it deserves a full 5 stars.
A very well made unit, easy to install and looks very sleep. Well designed buttons for ease of use, take around ten minutes to install from start to finish. My only down side with the unit it the quality of playback with music, it's a little tinny.
Easy to fit although well worth going online for the full manual. Not used it yet as intercom but easy to pair and works well with phone and sat-nav. Buttons easy to use with gloves and have a solid, quality feel.
Easy to operate, even with thick gloves on. Fairly intuitive to use as well. Connected easily to other comns units. Decent loudness on the speakers.
HJC 21B Smart Intercom
- Applicable for RPHA 2nd Gen Series: RPHA 31/ RPHA 71/ RPHA 91 and full face: i71
- Call answering and hang-up functions
- Built-in FM Radio
- Long-lasting power (Up to 13 hours)
- Battery Unit and PCB unit
- Boom-type which is applicable for modular and JET helmets
- Wire-type for full-face helmets
- Bluetooth 5.1
- Advanced noise control
- Intercom 1,600 m
- Voice prompt
- Universal intercom
- HD speakers
- Audio multitasking
- 4-way intercom
The SMART HJC 21B is the 2nd Generation Standard Bluetooth Communication System model that supports 21B compatible HJC helmets, with structural interfaces that users can easily mount on HJC helmets. Based on the BT 5.1 low power system, the 21B offers Bluetooth 4-way intercom functionality, with over 22 hours of talk time.
The enhanced sound provides users with an HD speaker, to enrich mid-to low-pitched sounds.
Questions and Answers
Does this comms system fit the HJC i100 helmet, and is it an upgrade to the 10B and 20B systems?
January 15, 2025Unfortunately, this intercom is not advised as compatible with an HJC i100. There are a number of differences between this unit, the 10B, and the 20B, such as Bluetooth 5.1 being included in the 21B.
Will this fit into the HJC R-PHA 11 helmet?
January 9, 2025The R-PHA 11 helmet isn't one of the models listed as applicable.
Does this fit the HJC F31 helmet
January 2, 2025We can confirm that it is compatible with the HJC F31.
Will this system work with the HJC V10?
November 30, 2024This isn't listed as being compatible with the V10 helmet, I'm afraid.
Is this system compatible with, and fit the HJC F71 helmet?
November 20, 2024This system is compatible with the F71 and F71 Carbon helmets.
You may also like...
Find it cheaper at any major motorcycle accessory retailer, online or in-store and we‘ll match it.
How to request a price match.