Is it 2.5mm or 3.5mm plug?
1690039
It is Neither, it has a "QD" quick disconnect plug that needs an adapter to plug into anything else, you can buy whatever size plug you need that has a "QD" connection on it.
1690040
Neither, you need to order the proper adaptor to make it work. By itself it won't plug into any phone.
1084968
I'm sorry, not a 2.5mm audio cable, you will need a 3.5 mm standard audio cable, sorry for the confusion.
1726672
3.5mm is a standard audio port. They're kinda over ear, but not very noise canceling
1403956
I'm confused with the question these are modular inputs and neither 2.5mm or 3.5mm.
1660307
Hello, it pretty much works the same, the only difference is you have to buy the input adapter to convert it. 2.5mm-3.5mm from radio shack is where I found mine.
1246519
It has a 2.5 mm male plug, too small for PC and Samsung pjhones which are 3.5mm size.
1017258
This won't work for you since it has a 2.1mm diameter plug that is 5mm long. I bought mine to power a USB hub which uses a very small plug.
536325
2.5mm is mainly for land lines. Cell phones are 3.5mm, but you can get an adaptor/convertor!
17282
The power supply is part number PCT-25S350U and says it is a class 2 power supply. According to the label the input is 100-240VAC, 0.23A 50/60hz and the output is 22-54vdc, 0.35A. I can't confirm if it is a 3.5mm jack but it looks like one.
2013713
3.5mm works. No option for any other size. You can also plug 2 set of headphones in.
1374086
That's correct, this microphone requires phantom power so it could not be used with a 3.5mm plug. Thanks for your interest!
689188
There is only 3.5 mm connector. This headset has a 2-way connection: through single combined micro/audio plug and also through separate audio/micro plug. Adapter(for separate connection) comes with a product.
1733315
the 3.5 mm plug is what is needed for iPhone. it works on mine with my otter case.
226481
I believe you mean 2.5 mm plug for headset. I Use this one and it works great Works well with headset Recommend using Panasonic KX-TCA60 Hands-Free Headset with Comfort Fit Headband PS ON Amazon this headset is $14.55
1561783
Yep. That's the plug/jack combo you need! NO 2.5 MM! (Unless you have an adaptor).
1850297
One point of confusion here is that the description had this as a 5.5mm x 2.1mm, but, the photo has the embedded text indicating it is a "DC 5.5/2.5mm". Both are a common size of connector. Not claiming an answer to the question here, just pointing out a spot of confusion.
1443226
Mine did not have the 3.5mm adapter, and the replacement did not have it either. The seller was Amazon.com. Did those who received the 3.5mm adapter order from sellers other than amazon.com?