Busch & Müller is one of the finest and oldest German Manufacturers for bicycle accessories. The company was originally founded in 1925 in the town of Meinerzhagen on the Volmestraße. Today the seat is located on a specially created site on the Bamberg, also in Meinerzhagen making high-end quality bicycle mirrors, lights, and accessories for the discerning cyclist.
The 801 Mirror for E-Bikes plugs into the end of the handlebar and is tightened with an allen bolt. The mount pivots on a vertical axis just outside of the handlebar, so that if you get too close to that bus, you know, that bus you're passing on the right and the driver turns into the bus stop? Yeah, that bus! Well, when you hit the bus, or the bus hits you (We don't have to have that debate here. I've got a forum on Google for that.) the mirror can pivot on that vertical axis and is far less likely to be damaged. You just swing it back into its normal position. It will just click into proper alignment. Pretty nifty, I'd say.