Review on Sennheiser OCX 684I Sports Headphones: Over-Ear, Sweat/Water-Resistant Earbuds for Active Use by Ada Grodzicka (Grodz ᠌

With its pros. +: They fit comfortably on the ears, the earplugs fit snugly into the ear canal, the cable is long enough to carry a smartphone in a pants pocket and not be afraid that the headphones will fly out of the connector due to tension. Its cons: -: Checked for reproduction of a pure sinusoid of the same amplitude; there are no problems with low frequencies, 20 Hz are already noticeable, but above 17 kHz (17500 and further in 500 Hz steps) - silence. -: the ability to control tracks by pressing the middle key stated in the instructions is not fully implemented (double-click switches the next one, the rest is not perceived), it may not be supported by all smartphone models / firmware, but . -:. the copy I got had non-working sound control keys; checked on several smartphones, an obvious marriage, perhaps hence the problems with the previous paragraph. I will change.