Customers used to come into the bike shop and complain that their bike computer was too difficult to use. The computers had two buttons. If you still get overwhelmed by two buttons, then Petzl’s MYO RXP Headlamp isn’t for you. In fact, it might be the first headlamp that’s a bit of a mystery to use. Two buttons control the setting for each of the three LEDs so you can finely tune your lighting needs. I still prefer the one button you hit to let you see in the dark that comes on most headlamps