For additional installation options and complete instructions which allow you to use all features of this Inline telephone amplifier, refer to your Installation Guide and User Manual. Need help? Call (800) 965-9043 AC POWER INSTALLATION 1. Install the AC adapter. USE ONLY with the ClearSounds AC Adapter provided. Attach the AC adapter to the IL95 (located on the upper left and side of the unit.). 2. Plug the other end into a working electrical outlet. 3. Follow the directions below for batt