Had them about 3 weeks and they're starting to play a high pitched tone during calls and music, voice during calls is starting to get crackly.. might be time to get in touch with the manufacturer and have them checked. Something is definitely wrong.. If you own high end headphones, the sound quality is not going to compare but they are an adequate replacement when you need to get the job done, if I can resolve the high pitched tones, I'd be pretty satisfied with the cost to value ratio