It grips to the case well without even pulling the tab off on the inside thats suppose to enhance the stickiness to the case top. So this didnt throw us as we knew what to expect. Im unsure if the size was in the product description, my fault for not checking. Find volume control and mute very useful. Id give it 5 stars if it opened horizontal, instead of vertical. (0x00050005)[ 2887. But really! The headphones are very good and the sound is amazing thank you. If you are thinking of these or the astro a50s, I would go with these. they are very beautiful!