Sell 12V HIFI Preamp Tone Bass Treble Volume Control Pre-Amplifier Board G4PH best price

Working voltage: double ac12-15v The front fever tuning board with treble, bass, left and right channel balance, volume control colour:Main color green Material:ABS+ metal size:15.2*7*2.7cm Package Contents: 1* Tone BoardOnly the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.