An infrared sensor is installed on the top of TOWNEW, it will sense an object within 35cm. So, to open the lid, you just need to swipe your hand above TOWNEW.
If you want to keep the lid remains open, touch the front button once. It will activate TOWNEW Open-Lid mode. To close the lid, touch the front button again, and it will come back to Auto-Sensing mode.
Do not force to open or close the lid with your hand.