You kidding me????!!! How come left and right are switched but not up and down???? How do it know?????
Truth is invisible
(youtube.com)
Pressing the test button ONLY checks battery voltage range. So pressing it just gets you to the replacement beep sooner.
1)china a has a patent on them. You cant patent nature. 2)ive never seen in chinese art pre 1700 and they have art! Was it illegal to paint a panda? 3)they only eat bamboo, no instincts of nature, breed 3x a year?!?!?!?!?!?!?!?