LCD display information of Handheld Transmitter Switch on the power switch (3), the following page will appear briefly. Then this CHANNEL/FREQUENCY page will appear as Main page. The channel and frequency data are the last retained information in memory during switch-off. The battery symbol on the left side is the battery strength indicator. Press UP button and the USER NAME page will appear. When no UP or DOWN button is being pressed after a few seconds, this page will stay and remain as main page.