Rolls MX28 MINI-MIX VI Three-Channel True Stereo Line Mixer,Black

Does it come with the power supply?

Do both of the headphone jacks, 1/8" and 1/4" work when used simultaneously?

How many volts power?

When you say universal power supply does it work in ireland and have irish socket adapter? the voltage appears ok at 100-240 but pls confirm. thanks.