Exactly as described, the full user-manual (145 pages). Perfect.
Text excerpt from page 13 (click to view)
Using the receiver
Switching the receiver on/off
To switch the receiver on, turn the volume control right until it clicks. The red LED lights up. to the
To switch the receiver off, turn the volume control left until it clicks. The red LED goes off. Note: The receiver has a short switch-on delay.
Remove the batteries or the accupack when the receiver will not be used for extended periods of time.
Connecting the headphones
Attention! High volume! Even short exposure to high volume levels can damage your hearing! Set the volume for the connected headphones to the minimum before putting the headphones on. Do not listen at higher volume levels than with loudspeakers.