CKK Electronic is a subsidiary of Chinese pedal company Sinvertek Electronic, and specializes on stompboxes with a more classic look and streamlined features. The Robot is their take on the OTA based phaser design and can deliver tones ranging from classic sounding to experimental swirls. Check out the demo by Mike Hermans. https://www.youtube.com/watch?v=g47L5YUuuT0&t=0sClick on the title for more