4 in 1 out: Support up to 4 audio source inputs and select 1 audio source output
1 in 4 out: 1 audio source input, and 4 ports output can be switch to amp or active speakers or headphone (If you need 2 or 3 ports output to play at the same time, you need to press 2 or 3 buttons at the same time and keep them locked. )
This is a good idea to solve the problem of unplugging and plugging the wire
Build in solid aluminium CNC chassis, looks nice and durable


