Comica CVM-AX3 - Gain Control Knobs (L;R)

L R
7.L/R
OUT
8.OUT
AUX
9.AUX
The Gain Control Button L/R is for adjusting sensitivity of Microphones
(Corresponding with INPUT 1 & INPUT2 LEFT/RIGTH )
3.5mm audio output
Used as the auxiliary LINE IN input, to mix with some music,etc as
background
7