7.
LED Display — LEDs display visual alerts, signal strength, and
operation mode.
8.
On-Off/Volume Control — Turns the power on and adjusts the
Audio Alert volume.
9.
Speaker — Sounds audio alert. There are four different audio alert
tones to distinguish each type of signal received. When you
become familiar with all the distinct alert tones, you can operate
the LRD 6299SWS/LRD 6399SWS just by listening, devoting
your full attention to the traffic in front of you.
6