3Filter 7: Fc 10500 Hz Gain -5. The sound quality is great and have a pretty long battery life. It takes a little tweaking on the initial install to know exactly how to position the wheel holders. At $40. I tried using it to communicate with someone online on playstation and with the microphone setting on the playstation all the way up and the microphone being held directly in front of my mouth the person on the other end said they could still barely hear me. Fit as expected, this my 10th pair, like them for arch support The battery life on the Sennheisers is awesome, and the sound is rich and full, just as I like. The other thing is that the phone ?? is advertised as 4G but by the phones info, it is a 2g/3G only. It is easily bent with weight. The toe loop snugness takes a little bit of time to get used to.