window in order to not hear the sound. land rover bar employed 'military' bone conduction technology, designed by bae systems, within their helmets for use within the 2017 america's cup. the helmets allowed the crews to communicate effectively with each other under race conditions and within the harsh, noisy environment; whilst maintaining situational awareness due to their ears being uncovered. in march 2019 at the national maritime museum, london, british composer hollie harding premiered the use of bone conduction headphones as part of a musical performance. the use of the technology allowed the audience to listen to a pre-recorded musical track on the headsets, whilst a live orchestra performed a separate but related musical track. this multilayered effect meant that electronic and digitally-edited sounds could be heard in conjunction with live music without the use of loud-speakers for the first time and that the source of sounds could appear to be close to, far from, or all around the listener. bone conduction technology is used in sentien audio, a wearable audio interface, to make it possible to comfortably wear it and stay connected for the entire day. through bone conduction technology and built-in software, sentien audio can also amplify sound to assist with certain types of hearing loss. research has found that the use of bone conduction headphones can help people distinguish between their own voice and the voice of others. the findings have clinical relevance for conditions such as schizophrenia. safety because bone conduction headphones transmit sound to the inner ear through the bones of the skull, users can consume audio content while maintaining situational awareness. england athletics partnered with bone conduction headphone brand aftershokz to give people a comfortable and safe listening experience whilst playing sport.