The main difference is its intended use: an assistive listening system is meant to transmit the original floor audio at an amplified voice for people that are hard of hearing or in noisy environments and an interpretation system transmits the voice of the interpreter speaking in a different language than the main speaker. In practical terms, the difference is that an assistive listening system does not include a microphone since the transmitter uses the venue’s PA system as an audio source. Additionally, fully ADA compliant assistive listening systems need to include at least one tele coil neck loop to connect FM receivers to hearing aids with t-coil and also an ADA plaque showing the venue is in compliance with ADA regulations.