By Irwan Kartawidjaja | Last updated: 30 August 2026
Key takeaway: An IPX7 waterproof rating means a device survived 30 minutes of still freshwater submersion at 1 metre in a lab; it does not test salt water, wave impact or a season of repeated dunkings. That gap between the lab and the lineup is why BbTalkin ships IPX7 with sealed screw case rather than trusting the rating alone.
At a Glance
- The definition: IPX7 means a device can withstand submersion in 1 metre of freshwater for up to 30 minutes
- The code: first digit rates solids (dust), second digit rates water. X means not tested, not "failed"
- What IPX7 skips: salt water, water jets, impact at speed, and repeated submersion over months
- Ratings do not stack: an IPX7 device has not automatically passed the IPX5/IPX6 jet tests
- BbTalkin's answer: IPX7 electronics inside a sealed screw case, so wipeouts hit a mechanical barrier first
- Care basics: rinse in fresh water after salt sessions, dry the unit before opening the case
- Repairable: mic and speaker components are replaceable parts, not reasons to bin the unit
The Rating on the Box Is a Lab Result, Not a Promise
Every athlete shopping for on-water electronics meets the same wall of claims: waterproof, water-resistant, splash-proof, submersible. Most of those words mean nothing. The one that means something specific is the IP rating, and almost nobody selling gear explains what the test behind it actually involves.
That gap matters because athletes do not use gear under lab conditions. A kite crash drives water at a headset far harder than a bench test ever will, and salt water is chemically nastier than anything in the standard. Understanding what IPX7 covers, and what it quietly leaves out, is the difference between buying gear that survives a season and gear that dies in week three.
What the IP Code Actually Encodes
IP stands for Ingress Protection, an international standard (IEC 60529) that rates how well an enclosure keeps things out. The code carries two digits. The first rates protection against solids, from large objects down to dust, on a scale of 0 to 6. The second rates protection against water, from dripping up to continuous submersion, on a scale of 0 to 9. The full breakdown is on the Wikipedia IP code page.
An X in either position means that digit was not tested. So IPX7 means the water test was passed at level 7 and the solids test was simply not run. X is not a hidden zero and not a failure. Manufacturers of water-sports gear often skip the dust test because their customers care about submersion, not sandstorms.
Here is the definition worth memorising. IPX7 means a device can withstand submersion in 1 metre of freshwater for up to 30 minutes. The test is static: the device sits still in a tank of still, clean freshwater at roughly bench temperature, gets pulled out after half an hour, and must still work. That is the entire test.
What the IPX7 Waterproof Test Covers, and What It Quietly Skips
Read that test description again as an athlete and the gaps jump out. The IPX7 waterproof test involves no movement, no pressure spikes, no salt and no repetition. Four things your sport delivers every single session are absent from the lab.
No water jets. Counterintuitively, IP ratings do not stack. Levels 5 and 6 test powered water jets, level 7 tests still immersion, and passing 7 does not certify 5 or 6. A seal that holds under gentle static pressure can fail under a directed blast. That is why some devices carry dual ratings like IPX6/IPX7: the manufacturer paid for both tests. A single IPX7 tells you nothing about jets.
No salt water. The test tank is freshwater. Salt water is more conductive, so the same tiny ingress does more electrical damage, and dried salt crystals abrade seals and corrode contacts long after the session ends. No IP test simulates a summer of ocean exposure.
No impact at speed. Water hit hard behaves less like liquid and more like concrete. A wipeout at speed produces momentary pressure spikes far beyond anything a still tank at 1 metre generates. The rating was written for a phone dropped in a sink, not a rider slammed by a wave.
No repetition. The device is submerged once. Your gear goes under dozens of times per session, across a hundred sessions a year, while seals age, flex and collect grit. A rating earned once on a new unit says nothing about dunk number four thousand.
IPX7 vs IPX8 vs IP67 vs IP68
Spec sheets love to wave these four codes around as if higher always means tougher. The honest comparison looks like this.
| Rating | Solids digit | Water test | What it actually tells an athlete |
|---|---|---|---|
| IPX7 | X: not tested (not "worse") | Still freshwater, 1m, 30 minutes | Survives a dunking. Says nothing about dust, jets, salt or impact |
| IPX8 | X: not tested | Continuous immersion beyond 1m, conditions set by the manufacturer | Depth and duration vary per brand. Always ask for the actual figures |
| IP67 | 6: dust tight | Same immersion test as IPX7 | IPX7 water protection plus certified dust sealing. Not "more waterproof" than IPX7 |
| IP68 | 6: dust tight | Same manufacturer-defined immersion as IPX8 | The premium code, but the water figures still vary per brand |
Two traps hide in that table. First, IP67 is not wetter-proof than IPX7; the water test is identical, only the dust digit differs. Second, IPX8 and IP68 are open-ended: the standard lets the manufacturer choose the depth and duration. "IP68 rated" without the test conditions printed next to it is marketing, not information. Any rating quoted without its test conditions should be treated as unverified.
Why BbTalkin Ships IPX7 With Sealed Screw Case
Knowing all of the above, BbTalkin made a deliberate engineering choice: do not ask the electronics to fight the ocean alone. Every BbTalkin 3.0 unit is IPX7 with sealed screw case. The Standard 3.0 is rated IPX7 in its own right, and it rides inside a waterproof case that physically screws shut rather than relying on a press-fit lid or a rubber flap.
The screw case is the answer to everything the lab test skips. A screwed seal is compressed mechanically, so it holds through the pressure spike of a crash instead of popping open. It puts a sacrificial barrier between salt water and the electronics. And it can be opened, rinsed, dried and re-sealed session after session, which is how the system survives repetition that no single rating measures.
After years of supplying surf and kite schools across Europe, the pattern in warranty conversations is blunt: water-damaged electronics almost always trace back to a case that was cross-threaded, closed on a grain of sand, or opened while wet. The units themselves hold up. The system works when the case is treated as part of the product, not packaging.
Jamie Overbeek is the stress test no lab offers. Jamie is a big air kitesurfer with a 38.8m WOO-recorded jump, and a landing that goes wrong from that height is a controlled crash into water at motorway speed. His helmet-mounted BbTalkin kit takes those impacts through the season; the Jamie Overbeek record story covers what that training block looked like.
Ben Neumann raises the stakes from durability to safety. Ben surfs without sight, guided wave by wave through his father's voice over a BbTalkin intercom and a surf cap headset. If water kills that link mid-session, Ben loses his positioning and his safety line at once. Gear reliability is not a convenience in the Ben Neumann rider story; it is the whole arrangement.
Caring for IPX7 Gear: Do vs Don't
A rating is earned by a new unit. Whether the gear still deserves it in a year depends on habits, and the habits are simple.
| Do | Don't |
|---|---|
| Rinse the closed unit in fresh water after every salt session | Let salt dry into crystals on the seals and contacts |
| Dry the outside of the case completely before unscrewing it | Open the case on the beach with water still sitting on it |
| Check the seal and threads for sand and grit before closing | Screw the case shut over a single grain of sand |
| Screw the case fully closed before it goes near water | Trust a half-turned case because the session is starting |
| Store the gear dry, with the case open to air out | Leave a damp unit sealed in a boardbag all week |
| Replace a worn mic or speaker component when audio degrades | Bin a working unit over one tired part |
That last row is worth money. BbTalkin treats the wear points as parts, not as the product. A muffled mic gets a repair microphone component, a crackling speaker gets a repair speaker component, and the spare parts set keeps foams and small pieces on hand for the season. The electronics you paid for stay in service.
The full washdown and storage routine, including headset care, is in the waterproof gear cleaning and maintenance guide. Ten minutes after a session is the cheapest insurance in water sports.
Frequently Asked Questions
What does an IPX7 waterproof rating actually mean?
IPX7 means a device can withstand submersion in 1 metre of freshwater for up to 30 minutes under still lab conditions. The X shows the solids test was not run, not that it was failed. The rating does not cover salt water, water jets, impact or repeated submersion.
Does IPX7 protect against salt water?
IPX7 is tested in freshwater only, so the rating makes no claim about salt water at all. Salt is more conductive and more corrosive, which is why BbTalkin pairs IPX7 electronics with a sealed screw case and recommends a fresh water rinse after every ocean session.
What is the difference between IPX7 and IP67?
IPX7 and IP67 pass the identical water test: 30 minutes submerged at 1 metre. The only difference is the first digit, where the 6 in IP67 certifies dust-tight sealing and the X in IPX7 means the dust test was not run. IP67 is not more waterproof than IPX7.
Is IPX8 better than IPX7 for water sports?
IPX8 only guarantees more than IPX7 if the manufacturer publishes its test depth and duration, because the standard lets each brand define them. For surface sports like surfing and kitesurfing, sustained depth is rarely the risk; impact, salt and repetition are, and no IP level tests those.
Can I take BbTalkin intercoms surfing and kitesurfing?
BbTalkin 3.0 units are built for surf and kite sessions: IPX7 with sealed screw case, so the screwed case takes wipeout impact and salt exposure while the rated electronics sit protected inside. Riders like Jamie Overbeek use the system through big air crash landings, and full-duplex audio keeps hands on the bar.
What should I do after my intercom has been in the sea?
Rinse the still-closed unit in fresh water straight after a salt session, then dry the outside completely before unscrewing the case. Opening a wet case is how most water damage actually happens. Let everything air-dry open at home, and check the seal for sand before the next close.
IPX7 Waterproof: The Bottom Line for Athletes
An IPX7 waterproof rating is necessary but not sufficient. It proves the electronics survived a calm half hour in a lab tank, and your sport is none of those words. The right question for any on-water gear is not "what is the rating?" but "what stands between the rating and the ocean?" For BbTalkin the answer is mechanical: IPX7 electronics inside a case that screws shut, plus wear parts you replace instead of a unit you bin.
Riders starting out should look at the Standard 3.0 or a complete 2-person kit with headsets included. Sport-by-sport setup guidance lives on the watersports hub, with dedicated surfing and kitesurfing pages, and the real-time kitesurf coaching guide and 4-person group guide show what the gear is actually for once it survives the water.
Orders ship from the Netherlands with free EU shipping above 300 euro. Not sure whether your sport needs the case, a specific headset or a full kit? Email sales@bb-talkin.nl and ask.
