See also:

Safety note
- Do not disassemble or modify this system. If you do, it may result in accidents, fire, or electric shock. - Do not use this system if you notice any abnormality, such as a frozen screen ...

AM radio reception
AM signals, because of their low frequency, can bend around objects and skip along the ground. In addition, the signals can be bounced off the ionosphere and bent back to earth. Because of these c ...

Locking with inside lock knob
Inside lock To lock the door without the key, move the inside lock knob to the lock position 1 , then close the door. To unlock the door without the key, move the inside lock knob to the unl ...