Features:
Ultra-compact stereo headphone amplifier for studio and stage application.
With 4 headphone output channels and one 3.5mm TRS and 2 RCA(L/ R) input channels.
Supports amplification and individual volume control for 4 headphones.
Supports choosing mono or stereo output signal.
Provides highest audio quality for each headphone even at maximum volume.
Comes with a DC 12V power adapter.

Specifications:
Material: Metal
Color: Silver + Blue
Power Adapter: US Plug
Item Size: Approx. 11 * 7 * 5.5cm / 4.3 * 2.8 * 2.2in
Item Weight: 385g / 13.6oz
Package Size: 22.5 * 14 * 8.5cm / 8.9 * 5.5 * 3.3in
Package Weight: 581g / 1.3lb

Package List:
1 * Amplifier
1 * Power Adapter
1 * User Manual(English)