|⇐ E10 Class-A Portable Headphone Amplifier Board||TPA6120A2 High Fidelity Stereo Headphone Amplifier Board [DLX] ⇒|
The E11 Class-A Headphone Ampliﬁer Board. The typical design with a speaker load impedance up to 600 Ω.
1) 3.5mm Headphone Jack (In / Out) 2) Volume
Remark: The battery is optional item, which is not included in this board.