Bone conduction technology allows you to hear audio while still being able to hear surroundings, which is useful when you still want to hear people talking to you, or hear traffic while driving, cycling or walking. It's not meant to be an immersive audio experience in the same way that most headphones are. It's similar to listening to audio from a speaker - you'll hear the audio, as well as what's going on around you. In a quiet room the sound quality is great, but in a loud environment what you hear may be drowned out by surrounding noise. For example, calls or music in an office work well, whereas calls or music in a bar or noisy restaurant will not work.
We’re working on refining the technology including designing the bone conduction pad to touch the correct part of your head on all head sizes, as well as reducing sound leakage from the frames so that all sounds gets transmitted to you directly without getting dispersed to guarantee high enough volume.