Subjectively: they overplay the open AKG K512 MK2, gracefully outdo the Axelvox HD272, which is not bad for their money, shatter the unsuccessful Sennheiser Momentum 2.0 AEBT (by wire), bypass the standing Sennheiser HD 215 and humiliate any JBL, including the mumbling Everest and their other hybrid bluetooth models . From the point of view of convenience, they are great: the replaceable cable is well fixed, three cables are included, which can be scattered over the player, receiver and external sound card in the system unit. The complete cover is small, I want more so that the "ears" sit in it completely. Listened to them on: ASUS Xonar D1 (foobar2022+ASIO, lossless tracks), FIIO M6 (lossless tracks), FIIO BTR1 (as amplification compatibility test).