Bought, following comments describing it as "small", to store the headphones KitSound child. The latter enters widely - for info, my helmet Edifier H850 (bottom helmet in the picture), enters battery too, in case some originals are looking for info about this product. With KitSound, there remains room for example, add the Sansa Clip Zip, a mini speaker Mini Buddy, cables, etc. (Upper case in the picture)! Personally I am delighted with my purchase.