Features:

　　Ultra-compact stereo headphone amplifier for studio and stage application.

　　With 4 headphone output channels and 1 input channel.

　　Volume of each output channel can be controlled independently.

　　Provides highest audio quality for each headphone even at maximum volume.

　　Ultra low noise 4580 operational amplifier for outstanding audio performance.

　　Comes with a DC 12V power adapter.

　　Specifications:

　　Material: Metal

　　Color: Silver

　　Headphone Jack: 6.35mm (1/4")

　　Item Size: Approx. 10.5 * 5.5 * 3cm / 4.1 * 2.2 * 1.2in

　　Item Weight: 185g / 6.5oz

　　Package Size: 14 * 10 * 8cm / 5.5 * 3.9 * 3.1in

　　Package Weight: 323g / 11.4oz

　　Package List: I1909US

　　1 * Amplifier

　　1 * Power Adapter (US)

　　1 * User Manual (English)