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I'm deeply saddened Ety have discontinued the hf5's, they were the prefect price/performance ratio. Given all flagship phones save Korea's have dropped the 3.5mm jack, a user hostile action (which will result in higher global cancer rates as Bluetooth is right next to microwave ovens in the EMF spectrum) I guess Ety need to make more revenue on lower volumes, but I'm still sad. Can anyone say that these are fifty bucks better than the hf5's?
Sorry about the HF5, Ety were purchased a year or so ago, and I am worried such things are a sign of what is to come. That said, these ER3 are a fantastic value. Basically a price reduction on the flagship ER4 by outsourcing production if you should so choose.
In regard to your concern about bluetooth vs. wired, while I myself prefer a good wired connection, the reality is that this is likely a little worse from an exposure perspective:
At microwave frequencies (like those from your wifi, mobile device etc comm bands), common mode coupling to the cable exterior occurs. This induced charge in turn resonates along the cable length and has the potential to re-radiate substantial amounts of energy.
The news is worse for glasses wearers; avoid metal frames if you are concerned. Your eyes are (by design) relatively sensitive to electromagnetism, so putting effictive current loops in front of them can be nasty.
Bluetooth, by design, is very low power and is usually orders of magnitude lower than wireless comm protocols (which push power limits for the sake of bandwidth) for exposure as a result.
It's all quite low level in consumer devices frankly, much more likely to get cancer from the Sun's emissions :(
Generally men keep their Bluetooth transmitter in close proximity to their gonads, liver, and kidneys, many women also carry phones in this area. Yes this "low" radio power decreases logarithmically from source, but across a population of a billion plus individuals there is bound to be issues.
I've worked for two wireless carriers, and two switchgear suppliers to carriers. All the radio engineer colleagues have instilled caution in me. There was also a large scale UN study urging caution this year but Google has conveniently lost it.
All I'm saying is I'm pretty certain the average cellphone owner doesn't need to have a phone that is fractions of a millimeter thinner. They want good battery life. They don't seem to care about size given the various XL versions of phones these days. It's a shvantz measuring contest amongst the phone designers, and we're the victims. Give us a damn headphone jack, make the phone marginally larger, and no one will complain. If some want to use the inferior Bluetooth audio connection, fine for them. My V30 was the third or fourth best phone last year, has no notch on it's six inch screen (some selfie addicted narcissists will wail about poor performance of the front camera: I, like totally, like fully, like urge them to totally, like, use Bluetooth!), excellent battery, AND a 3.5mm jack, so it can be easily done.
Please don't attempt to minimise this issue. Please others don't don't read squids comments and blow this off. When you know something is wrong, speak out! We can wear sunscreen or cover up from the sun, I live in a tropical country, so I do this as part of my sweaty daily grind. That's totally a false equivalency. Solar/background radiation is the baseline. Let's not add to this load, or be forced to wear lead undies. Give us our dang headphone jack period, full stop!
Don't forget what is happening, and will continue to happen for a decade at Fukushima either. Or what radiation was released when the wildfires burned through the Santa Susana nuclear laboratory last week! Or the fire in a Cincinnati landfill burning towards illegally dumped radioactive waste from the Manhattan project! Or .. Do I need to go on?
Thanks for the info/review. I guess I'll spring for a pair. Come to think of it, my first pair of Hf3's was about this price. The Amazonation of price reduction expectation is sometimes hard to overcome!
Fellow V series fan here (V20, no notches).
You are totally missing my point.
Wired from a phone radiates MORE than BT. The cell signals are powerful and high frequency enough that your headphone cable acts as a secondary antenna (reradiates). Bluetooth without cable is appreciably lower in most scenarios.
I'm not trying to minimize anything, especially discussions about Emag :) but if you are going to be paranoid do it right!
Oh, I sorta thought that was what you said, but was unsure of that was what you were talking to. My view is always minimization. Whenever my earphones are in all radios save the telephone radio are off. I'm fastidious about turning of radios when the device is next to my body. I only listen wired when in traffic on my scooter (Ety isolation rocks in this regard!). There is no need for data etc when I ride, except for the rare occasion I need data for Google maps. It's so easy to turn radios on and off, plus it saves on battery, so everyone should do it only for that reason if they think the EMF stuff is hokum.
Again, thanks for the push into this drop, I'll try to compare both once they arrive.
P.s. I don't know if you know, but the v30 is now bootloader unlockable via an XDA exploit, so another big reason you should upgrade your v20! They're super cheap on eBay, the silver is gorgeous!