It was great 2.5mm for my cordless phone and 3.5mm TSSR (for smartphones). I especially like the fast connection and the presence of 2 ports. very comfortable and loud enough with a dual headset. I wish the headset had a foam windscreen for the mic. I had one and it's better when I'm excited to keep breath blasts down. Time will tell if it will hold up as I expected for the next 1-2 years. I recommend others to buy.
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