What is Bond conduction pillow?
- Two bone conduction speakers are inserted into a pillow or a cushion to enable users to listen to music and study (text books, meditation, Bible and language study) through the use of a headphone without power connection.
- It is to directly deliver sound to the inner ear by conducting to a skull without going through the ear drum. It is a concept corresponding to air conduction, and those with a conductive hearing loss whose external auditory meatus and eardrum are damaged can hear sound based on bone conduction. 
 
- A bone conduction transducer is built in a bone conduction speaker, and it converts electric signals into vibration signals to deliver sound acting as a vibration speaker.
- If one uses a pillow in which a bone conduction speaker is built, the sound does not leak outside the pillow, so it is possible to appreciate the original sound through vibration without interrupting others’ sleep.