https://www.petrutech.com/ - The private hearing aid can be used to extend the "reach", allowing the user to perform better in difficult or impossible situations. These devices can be hardwired or wireless. Every technology has its own unique features, capabilities, advantages, and disadvantages. These should all be taken into consideration when choosing an assistive listening device. Wireless technologies can be more portable depending on the signal strength and device range and can be limited by the security of signal and line of sight.