BE AWARE!!! These are NOT bone conduction headphones. NOT bone conduction headphones. The title and descriptions are not true. It's just a open-ear headphone that have little speakers that points toward your ear. If you look closely from the picture, the little slit hole is where the sound is coming from. If you set the volume to mid-high level in a quieter place (library), someone next to you can actually hear what you are listening from the headphone. Sound quality wise is average. Just expect this is a normal open-ear headphone where you can still heard what's going on around you, but it's NOT bone conduction. Shopperplus did promptly refund me when I told them about this.