This is a review from a mom that these products work. People hear me much better now. I can wear them all day without a problem. Great pair of slip-ons if you need adjustments to accommodate your feet. Don?t know why people are saying they are small, or for kids. XD. Quizá no lleguen al excelentísimo nivel de los Sennheiser, que son los mejores que he probado nunca, pero están realmente bien y funcionan a la perfección tanto en interiores como exteriores. Not a lot of weight as far as weightlifting goes. This is a great purchase for the price when your child needs some headphones for school. When I returned to the US, I couldnt find them reasonably anymore so I tried out a bunch of different brands and types.