Everything you need to create a high-quality fixed hearing loop system for a counter, desktop or ticket booth. Ideal for banks, post offices, reception desks, ticket offices and any other arearequiringperson to person coverage. PDA103 amplifier includes a 3.5mm microphone input (for use with the AMTmicrophone supplied), a line level input and an outreach socket Metal compensation controlhelps improve intelligibility in rooms with high metal content. Adjustable mic, line level and outreach controls. Drive (level) control allows the amplifiers output stage to be set-up to suit the exact characteristics of the application. State-of-the-art audio processor features an automatic gain control which compensates for poor microphone techniques and helps suppress loud noises, hisses &clicks Limit, Peak, Loop Fault and Power On indicators Designed to be wall-mounted using the keyholes provided Exceeds the requirements of BS7594 & EN60118-4 when correctly installed