this unit has a solar power charger built in so it is charged all the time.
Not sure...just installed a week or so and still looking to see how effective they are. Thanks!
Less than advertised.
Check directions. Usually in the ground with 100 centimeters of shaft showing. Make sure there are no obstructions, such as foundation walls, buried tree trunks, septic tank walls, etc. in the line of the sonic signal.
Doubt it. They may be annoyed by it, but if there is something in your garbage they want, they will put up with it.
Doubt it. It may annoy them, but they're too large to let a sonic signal get between them and their prey.
Check the On/Off switch under the solar array. I adjusted mine and accidentally turned it off.
I don’t see how, just be sure too follow safety instructions for your eyes.