Vortex Sound Research

Fellas, I’m new to the synth game and recently made my first purchase on Reverb for a Microkorg. However, when I try to turn it on, it flashes for a second, saying “Synth / Vocoder” along the panel, then turning right back off again. It didn’t come with an ac dc adapter, so I’m trying to play it using batteries. Is it not turning on because it isn’t hooked up to an amp or headphones?