Clearly knock offs. Whatever you are viewing through the VR headset is also displayed on your monitor(s). game. The batteries have lasted through workout sessions as well as when cleaning my house (which can take anywhere from 1/2 an hour up to ~4 hours, so idk how theyd perform any longer than that. It would be a steal at twice the price. Im a happy girl. The button failures out the box are a no go for me. I bought these as I was worried about losing or damaging more expensive Bluetooth ear buds. These incense sticks are very simple, last forever, and smell heavenly. Sie sind auch nicht schmal sondern breit, was allerdings für mich von Vorteil ist.