Review on AKG Black N60 Noise Canceling Headphones by Ben Balas

Cannot determine the charge level. They place an LED indicator behind the NC slider when the NC slider is in the off position. When the NC slider is in the ON position, the LED is always green, which means the NC is on and does not indicate charging status. So it is actually IMPOSSIBLE to determine the charging status. All you have to do is plug it in and hope it's charged. In addition, the USB side of the charging cable is so thin that you can plug it into any USB socket. Unfortunately, the required connection is only one-way, so it's very easy to just plug it into a USB socket and NOT charge it at all. Combine this with the COMPLETELY inefficient LED charging feedback described above and it amounts to a COMPLETE failure on the part of AKG in terms of charging product design. The headsets have good sound quality and noise cancellation, but unless you can reliably charge the device, it's all pretty moot. I have found that my ears get very hot when wearing the device. Not very nice.