Question 1

Is this model compatibile with iPhone 13 or do you need another adapter?

Accepted Answer

Dear Customer,

Thank you for your interest in the SYB H.A.R.D Headset Anti Radiation device, and for your question.  
I understand you would like to know if the SYB H.A.R.D  is compatible with iPhone 13 and I would like to help you with that.

iPhones have a lightning port and the H.A.R.D is generally compatible with any device and headset with a standard 3.5mm Jack or USB-C adapter. 
You can try using it with a lightning adapter. However, we do not recommend this. 
​
The reason we do not recommend the HARD for iPhone users is that some of our customers have noticed compatibility issues that prevent some of the call features to not work properly when they use a Lightning Adapter.

If you have a lightning adapter and you are not experiencing any errors when making calls then you can continue using the HARD with your iPhone. Be assured the protection provided by the HARD is not compromised by using the lightning adapter.

However, if you do experience call errors you may return your HARD within 30 days of receiving it.

The SYB Air Tube Headset could be an option you may want to look into. However, you will need again to use a Lightning adapter (sold elsewhere) for iPhones. 
https://www.amazon.com/SYB-Stereo-Headset-Anti-Radiation-Protection/dp/B075MZHQZC?ref_=ast_sto_dp

Please feel free to reach out to us if you have any further queries or concerns through our seller page. Just click "Ask a Question" on our seller page or visit our website.

Have a wonderful day!

Sincerely,

Sarah
SYB Customer Service

Question 2

Does this thing have any DAC chips integrated in it and if so... what are the specs on those chips??

Accepted Answer

Dear Customer,

Thank you for your question and interest in our products.
​I understand that you would like to know the science behind the SYB H.A.R.D device and I would help you with that.

This device does NOT have or work with DAC chips, and I would like to explain how it works.

The EMF emitted by cell phones is carried through the wired channel by standard headsets directly exposing your brain. The SYB H.A.R.D. protection contains a powerful dielectric gel formula that absorbs unwanted radiofrequency radiation and allows only clean sound to pass through the headset’s channel.

I would love to share the laboratory report of the SYB H.A.R.D. from the University of Gloucestershire but Amazon does not allow us to send direct links or emails, and thus I cannot add the link here or send you our direct information. That said, a simple google search “Shield Your Body” should bring you right to us.

Please contact us to provide further information :)  I look forward to assisting you with this matter.

Have a wonderful day!

Sincerely
Sarah 
SYB Customer Support

Question 3

Can this item be used with a headset I connect to a portable landline phone handset? the handset only has one rca 3.5 mm plug

Accepted Answer

Dear Customer,

Thank you for your interest in the SYB H.A.R.D Headset Anti Radiation device, and for your question.

The SYB H.A.R.D. is compatible with any device or headset with a standard 3.5mm or USB-C audio jack.

Please feel free to reach out to us if you have any further queries or concerns through our seller page. Just click "Ask a Question" on our seller page.

Have a wonderful day.

Sincerely,  
Sarah
SYB Customer Service

Question 4

Yea... i'm looking for specific information...like whether or not this thing is a real dac and most importantly, what are the specs...? seems sketchy!

Accepted Answer

Dear Customer,

Thank you for your question and interest in our products.
​I understand that you would like to know the science behind the SYB H.A.R.D device and I would help you with that.

This device does NOT have or work with DAC chips, and I would like to explain how it works.

The EMF emitted by cell phones is carried through the wired channel by standard headsets directly exposing your brain. The SYB H.A.R.D. protection contains a powerful dielectric gel formula that absorbs unwanted radiofrequency radiation and allows only clean sound to pass through the headset’s channel.

I would love to share the laboratory report of the SYB H.A.R.D. from the University of Gloucestershire but Amazon does not allow us to send direct links or emails, and thus I cannot add the link here or send you our direct information. That said, a simple google search “Shield Your Body” should bring you right to us.

Please contact us to provide further information :)  I look forward to assisting you with this matter.

Have a wonderful day!

Sincerely
Sarah 
SYB Customer Support

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Shield Your Body Headset Audio Quality Enhancer, Air Tube Alternative, Wire Headphone Audio Filter, Headphone Jack Adapter Compatible with 5G Devices, Includes USB C to 3.5mm Audio Adapter

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