EEVblog
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- เผยแพร่เมื่อ 30 ก.ย. 2024
- How do you make waterproof earphones?
A teardown of the Sony Walkman NWZ-WS613
Also talk on o-rings and waterproofing electronics.
#WaterProof #Sony #Design
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Green material is probably some sort of epoxy or photo cured plastic. You didn't need to open this to replace a battery, so it was permanently sealed. Until you broke into it which was somewhat difficult.
Not that difficult. Drop it a few times and you might get unlucky. It's a similar material to conformal coating.
Rubber is much better, including urethane.
@14:00 I think that green seal is a sealant that is added after being clipped together, to glue it shut.
I thought that green bit was the polycarbonate part of the shell, with the rest being ABS as printed on the shell
Hey, my favorite line of running mp3 player/bluetooth headsets to be destroyed at the hands of Dave... noice. xD
I guess not many people know about this line from Sony, but it's currently in the... probably 6th or 7th iteration since the first model, and Sony has been extremely good into listening to user requests and improving the design overtime. It's not super cheap, but they really listened and invested into attending user requests for this product line, major respect. Size, weight reduction, bluetooth capabilities, having some way of adjusting the neckband length and tightness, ambient audio passthrough... each iteration they add something that is being requested by users.
This used to be an mp3 player only headset, Walkman line. Bluetooth came... pretty late into the game actually, first model with it being the previous to this one.
I can get how lots of people just hate this design... looks weird, the in ear thing really hurts after a while, it's really bad if it doesn't fit you well.
But for a few people, it's just this or nothing I guess. That's probably what's keeping this line going on for all these years...
Over the years, I tested well over 20 different mp3 players for running and bluetooth headsets. If you add wired phones with smartphone on bracelet style case or some sort of pouch/fanny pack... that would be something closer to 50 different headphones.
All of them without exception get dislodged from my ear or just plain drop out once I've ran juuust a bit and sweat becomes involved. All of them... except for the headphones from this line.
I also tried regular buds, those won't stay in place even when I'm not running. I tried those with different types of caps or extra support that goes around the ear, nope. Proper big headphones... of course they don't work for running, but they all make my ear super hot and super gross, so no friggin way... specially because they give me some very painful pimples.
I also tried some more generic neckband models, it's never the right tension... either too lose, or too hard, which hurts the ears. I also tried the bone conduction models.... too muffled, can't hear anything over the ambient noise while running.
So, I'm on my 4th purchase of Sony NWZs... the exact same one Dave is destroying there. xD
I have to note too... none of them so far has degraded to the point of not holding a charge. Perhaps the very first one I bought which I gave away is no longer working, but all others are still with me and plenty ok.
Then again, I don't really use them all the time. And I must have taken it for a swim only half a dozen times or so... mostly use them on running sessions. I do sweat a lot though... xD So at the very least mine have survived a couple of years being drenched in sweat couple times a week.
Oh yeah, explaining... this thing has an internal mp3 player with some 16Gb storage... not much, but enough. You either use it like that or as a bluetooth headset.
Another thing that might explain the excess of electronics... it has a digital ambient audio bypass. It's not super great, but works. You can activate a mode with a button that captures audio with it's microphone and mixes with whatever is playing. Give you some ambient awareness.
Do these have a repeat function?
@@zetasyanthis From what I can tell, it has shuffle and repeat mode only for internal storage.... on bluetooth mode you need to program it on the device, I think. Not super sure because I don't use alternative modes much. But Sony website has the digital manuals available to check out!
Waterproof Earphones? Considering the third-world condition of your roof... Good choice!
I am looking forward to your next reviews of underwater-oscilloscopes.
I want to see an underwater soldering station. Hopefully with a fuse and GFCI protection.
Plenty of seals in the headset. Aren't sharks attracted to seals? :) Great teardown once again Dave... 10/10
14:25 The green stuff looks like a sealant. It's probably liqid / viscous and hardens inside the case.
D1ckbait and waterproof penetrators? De-monetised! ;)
"2-minute teardown"? We're out by a whole order of magnitude! :D
If you are going to be out, why not do it with some style.
@@EEVblog "If it's worth doing, it's worth overdoing", eh? :P Was that Mythbusters, or..?
2min well-turned into 20 mins lol
@@EEVblog Thank you Dave for doing such a detailed approach on my headphones! I already got a second pair and it appears they already improved the seal around the in-between-the-ear cord. There's like 5 cm of rubber sticking out, covering the cord itself.
they clip the white bit in, there's no green. the green is liquid plastic that is poured in and then cured with UV to seal it. by cracking it open you've broken the seal
The green is most likely a kind of glue/expoy, I have seen that a lot of times in similar applications, when you look at it under a microscope you can see that it perfectly fits into the imperfections of the outer part.
2:13 Hummmm!? What else? 🤣
obviously
Waterproof penetrators....there’s your band name of the day :)
Maybe that green stuff was rubbery when it was new but then it got rigid with time, some pressure was applied to the case and the seal cracked.
The green may have been more rubberized originally, and just hardened over time.
Possibility
Murata actually did the WiFi chip for the MacBook Pro 2016 (at least the 15 Inch)... See also: www.ifixit.com/Teardown/MacBook+Pro+15-Inch+Touch+Bar+Teardown/73395
Nice. I did work experience as a 16 year old at AWA Microelectronics. They were doing some IC in a can, something aerospace or military, might have even been for your sonarbouys, I can't recall. But yeah they welded them, put them in a bomb and pressurised them with helium to stupid pressures then evacuated the bomb, waited a bit and then opened a port to a mass spectrometer. If the weld was shit, then the helium would slowly leak out and give a much larger peak at helium than a good one, and of course I'm sure they spent weeks calibrating it all with holes of various sized zapped into the can!
Too bad he didn't send you a Kielbasa too. LOL Great video!
Yeah :-) Kiełbasa is very delicious! Greetings from Our Great Poland. You should try "schabowy z kapustą". Mmmmmm.... Yummy :-)
You should do a video discussing the Engineered to Fail phenomenon in manufacturing. Maybe talk about the modes of failure, maybe the economic justifications, maybe just rant about it.
where else would you stick it on, he said.
I wonder
You took the dick bait :p
I have a newer version thats going on 2 years so far. Love the thing, I spend alot of time in the pool rehabing my back and having audio books makes it so much better. I am hoping to get may more years out of mine
It seems the BLE remote control is the most useful part of this set) I have this one and it was very interesting to use the rc to control another devices. Its possible because rc uses only MAC address filtering after power on and then you can connect to it with or without pairing procedure. I used the rc to control a prototype for one project at my work.
Conformal coating would have saved it, looks like. Funny how something you would want potted, isn't.
I didn't expect to see "dickbait" while watching an EEVblog video. I couldn't stop laughing!! 🤣
That, and the huge Crocodile Dundee knife in the beginning!
the green shit seals with the cap
Welcome from poland ;)
That antenna must have been the NFC coil
I think when the top side is put into place, it has some ridges that press on the green llastic part, which pushes it to the sides as it's being blocked from the bottom and pressed from the top. When it's pushed to the side, it can then create a nice seal.
Very good tuto. Like the way to describe all the different modules inside the hardware. 🙂
Hi from Poland :D
I know its quite common, but I've always found interesting the idea of a flat flex "pcb".I know know its costly, unnecessary, and sometimes even dicky to work with.But it does make me wonder on the engineering possibilities.
It is the worst product from Sony... After two months of use, the sound on the right side does not work... It is very frustrating
My Sony Walkman WS 623 while connecting with bluetooth, outgoing voice is not listening to the call receiver from my walkman mic. I have updated the latest software but same issue of outgoing voice mic is not working. Kindly help me and advice how to fix this issue.
I have lost count of how many of these Sony Waterproof MP3's I have had. The control ring is a later expensive gimmick that serves no real use, so stick to the cheaper non bluetooth ones. I swim 4 or 5 times a week in these listening to prog rock - to block out any screaming kids in the other half of the pool. The shortest life one died after 3 months and the newest and longest lived survived 24 months before finally giving up this week. Mostly they get a few months past the 12 month warranty before packing in. If I can get 250 swims out of a pair then, at half an Aussie $ per swim, I am happy. So I have just ordered yet another replacement pair....
Sony is always full of surprsises when it comes to hardware layout :D tha's were quite a lot of swimming. Is there any coding, layer of hidrofobic material on PCB's and Flex? at 9:49 looks like a toshiba memory. The rubber solution looks like more a hidrodinamyc path to the water pass thru instead of penetrating
I almost feel like you should teardown a Nortel PBX phone. (Good luck getting one from the USA or Canada to Australia.)
The potting compound there looks like Corning 3145 Gray. Used in the aerospace industry to seal up avionics and as an adhesive for bodges. Even directly poking it with a soldering iron doesn't do anything.
Looks like it was designed to not be waterproof indefinitely. 3 years sounds like a typical consumer product life cycle, and that's how long it's been in use before it started acting up. Damn planned obsolescence!
Awesome teardown!! Mine had the left speaker go out on me. Never knew what caused it. Thanks mate!!!
AvE could probably tell us where else you can stick the rinky dink BT controller on. That thing is destined to break. Pretty bad domes on this and no solid backing to hold the board in.
I had one, model NWZ-W262. The play button seal failed and killed the device in a few months. Total garbage!
Bro why it's volume is too low how can I increase it's volume ? My cousin kept it off for really long time! Being a product of sony it should have great really good volume & bass ? Did u faced same issues in yours
Sniffing for leaks sounds like a terrible job task!
Looks great on the resume though!
Is there a way to find spare batteries for this? Mine started to drain too quickly and i absolutely love my unit!
👍👍👍
you can wear these at your current workplace, cus the roof leaks like crazy!
The water-resitance rating paper says that the headphone units are not really waterproof, it seems?
I don't care for those rubber suction cup headphones either.
As the batts take up quite a lot of the volume, I wonder whether they change size during charging enough to cause internal pressure variations and forces which add to the sealing problems ? Nicely built though, as usual with Sony :-)
I have designed autoclaves with similar seals and it is the outside pressure (inside with an autoclave) that causes the seal to expand as it is pressed. The more pressure the more the seal is pressed so they work really well until they go hard.
Hello, what are the charging pins?
Yea no yeaaa noo yeaaaaaaaaaaaa yeaa yea noo yeaaaaaa yeah!
How's the bass?
Probably pretty good since they seal to your ear canal very well. Bass would work down to DC.
What an impractical box cutter.
The newer models are like a third of the size, must be interesting to see how they crammed it in...
Very nice video Dave love your channel :).The Murata IC is a type ZF Bluetooth 4.1LE module they make combo Bluetooth/wifi SIP modules. The Fidelix IC is an SDRAM and the Toshiba THGBMDG5D1LBAIL is a 15nm MLC 4GB EMMC for the STMP3780 ARM926 audio system on chip IC running at 200MHz with integrated PMU, Audio codec and LCD interface with external memory and SDIO interface.
Dave. You'll have another teardown coming in soon. And it's your fault!
2:08 - "Where else would you whack that? ... **hmmm** "
Wow, Dave, you're the only other person that I know (besides myself) who also cannot stand in-ear phones which create a pressure seal between the outside and your eardrum. Unfortunately, except for big and clunky over the ear headphones, there isn't really anything else being produced that works for us :-/
Can you do a video about designing Rigid-flex PCBs? I've tried looking up videos about that on TH-cam, but there's not much on that topic, only some short videos on the construction etc.
BET THE GREEN STUFF TURNS RED WHEN WET. Like the water indicator in phones & computers.
Helium leak detection. The smallest molecule of them all (Hydrogen pairs up). There's a teardown for Dave, one of them helium sniffers!
Electric 2019 Free Energy Generator 100% Self Running With DC Motor Using Wheel
It sure looks like the green stuff was poured into the void around the white lid. I'm pretty sure someone else had these open shortly for a quick look before they got to you.
no "HI' , no "CATCH YOU NEXT TIME" I pass
Oh shit!!! You're right!!! Maybe it's no Dave? Or clone?
I shunned those silicone earbuds for decades. Then I got some one day to give a try and for their portability and blocking of external sound on the city bus they won me over. No way I'd wear them at home, but little other choice on the go.
I think that the green seal works with the top cover to prevent water penetration,
as intermedium between the two. So for the white secondary cover to work, the first top cover would perhaps push it down to get the desired result. Or maybe its a glue thats added afterwards during the assembly process.
Water doesn't pass thru because there is air inside and gaps and pressure are too small to penetrate. It is made to swim, not to dive. Ruin mine, cut a flex cable with an exacto knife when I tried to open the case to replace the dead battery. It is a nice product anyway however it is not meant to serviced.
Maybe green stuff was rubberyer once and 'went stiff'. as things do sometimes.
They wouldn’t need to be submersible as Bluetooth won’t function underwater?
OK sound, but lousy shark attack. Unless you just want to sit at the bottom of a pool cause that is cool for some reason.
Those circuit boards are massive? My crazybaby air nanos have a tiny circular one and a bigger battery, these are huge!
When swimming (wearing an older set), ear buds need to seal in the ears or there is no music. Sometimes happens when I push off the side of the pool too fast and then no sound from one of the buds with water in my ear.
I wonder if the green stuff swells slightly when damp. It is good to see the breather vents, the discs in the middle of the white caps.
I've had 2 sets of these (slight different model I think as no Bluetooth) both failed after about 3 years
those white plastic caps are a one time use item...probably put in place then the green goo applied creating a seal that doesn't rely on the plastic being utterly perfect.
What a
6/5000
What a beautiful product placement. Good idea X-Kom . !!!
I reckon that green ring's overmoulding once the clamshell's shut, bit of a weird process though.
I had no idea there was a solution to break the monotony of swimming laps. I think I'll have to invest in a pair!
I know where I'm going to stick it. On a side note, does it vibrate?
poland in the house!!! 🇵🇱 ostroznie! dont throw that box! lol
I wonder how they fit all this in my Anker SoundBuds Flow 😳
Bluetooth signal going through water? Doesn't water absorb the signal?
One thing I learned about water proof. Eventually it leaks. Thats inevitable.
Why don't they just dip the whole thing in expoxy or some sealant ?
I've seen D1KBAIT in more effective form factors.
i yelled you Dave, that white-green plastic thing is an antenna!!
mmmm, "look at the depth of those contacts ...", bow chika wow wow...
Being waterproof doesn't make you daveproof, I guess
Cool to see Sony stuff, I work at the Lund office ;D
9:46 I read that too :-)
now THATS A KNIFE
"rubbah" :-)
In some iFixit teardowns, the iPhone has been using Murata Wifi-Bluetooth modules
We can clone your fingerprints on the this video
Great teardown.
Your todger😁
I have these :) Use them for kiteboarding!
That's neat about the helium test, they do that for telecom cables too. They are filled with air at a low pressure to keep water out. If there is a leak they pump helum and go for a drive with a special probe to try to find the leak. Helium makes a different sound when it leaks out.
Telecom cables actually use Nitrogen for pressure and to prevent the ingress of wet air.
Get the green stuff wet. Perhaps it swells...
Ear buds never work with me.
Great ! Is it a single battery , right?
Where can I get a spare battery
They are for swimmers ...up to 1 m depth ..
My ones died too ... battery I guess cause I did not use them ... just charged them and when I wanted to use them they were dead.
It's because you fed them after midnight.
Wow that knife is to go to the jungle, lol