4 Channels Sound Mixer Compact Size Professional Sound Mixer with Power Adapter Mono/Stereo Audio Sound Line Mixer 

Features:

Ultra low-noise line mixer with 4 inputs and 1 outputs.

Each input channel with individual volume control knobs.

Compact size and metal shell, portable and durable.

Dual power supply: power adapter(Included) and 9V battery(Not included).

Specifications:

Color: Black

Material: Metal