Hearing loops, or audio induction loops, provide special support for listeners who rely on hearing aids. They use wireless signals that are entirely transparent to other devices, and are especially useful in areas that tend to feature high levels of background noise. To ensure compliance with the Disability Discrimination Act, the Building Code of Australia requires that at least 80% of non-restricted space in public buildings be covered by hearing loops. For all their benefits, audio induction loops are straightforward devices that are easy to install and typically require little to no post-installation adjustment.