Audio Switch (1 input, 2 output)

I was tired of switching between my headphone jack and my speaker jack to my computer, so I designed a switch box that will take in a single input from the computer or any device, and you can choose two outputs. I used a double pole double throw knife switch, and 3 - 3.5 mm female audio jacks. It takes two m4 countersunk bolts to screw into the holes.

Switch:

https://www.amazon.com/Philmore-Switch-Terminals-0-3A-50VAC-0-5A-6VDC/dp/B0108H860A/ref=sr_1_7?ie=UTF8&qid=1505971641&sr=8-7&keywor