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Feature Identification . . . . . . . .1
Power Requirements . . . . . . . . .2
Installation . . . . . . . . . . . . . . .3
Volume Control . . . . . . . . . . . .4
Boost Button (HA40 only) . . . . .4
Tone Control . . . . . . . . . . . . . .5
Battery Indicator . . . . . . . . . . .6
Regulatory Compliance . . . . . .7
Troubleshooting . . . . . . . . . . .11
Warranty . . . . . . . . . . . . . . .12
Out of Warranty Service . . . . .13
Table Of Contents