Harley Benton HB-20B User Manual page 16

Connections and operating elements
7 [TREBLE]
Control to adjust the high frequencies.
8 [VOLUME]
Volume control.
9 3.5 mm input socket for connecting an active signal source, e.g. CD or MP3 player.
10 3.5 mm output socket to connect headphones. Connecting headphones automatically mutes the built-in speaker.
11 Standby indicator
If there is no signal [INPUT] at the INPUT jack for 30 minutes, the device will automatically enter standby mode (LED
green). As soon as the [INPUT] jack receives a signal again, the device automatically switches back to normal mode
(LED red).
12 [POWER]
Main switch to turn the device on and off.
16
bass combo