I am satisfied. These headphones offer an excellent value for the price. Despite the fact that they function most effectively with other Samsung products (inside their ecosystem), they get along swimmingly with Apple products like the iPhone and MacBook. The auricle, or headphones, themselves can take some getting used to, but this is something that virtually everyone experiences at some point. Pros: Excellent headphones that are also quite comfortable. The sound comes from AKG, the case is not very big, and the batteries have a long lifespan. Excellent reduction of background noise, and the "transparent" option also performs admirably. Negative: There is no app available for Apple's iOS platform (you have to configure it on Android, but all settings are saved). In older subway carriages, the feature that detects speech is activated whenever the brakes are used.