Opening and closing: from the inside

See also:

Treble, bass, balance, and fader
▷ "Treble": treble adjustment. ▷ "Bass": depth adjustment. ▷ "Balance": left/right volume distribution. ▷ "Fader": front/rear volume ...

The concept
This system can replace up to three different hand-held transmitters for various types of remote- controlled equipment, such as garage doors or lighting systems. The hand-held transmitter signa ...

Switching on/off manually
Switching on/off manually Press the button. ▷ On: the LED lights up. ▷ Off: the LED goes out. ...