Price?
the figures are pure fabrication. A 2kg battery would be approx 9Ah if that and would get you maybe 10 miles on the fat, 15 MAX with more human effort.
My only comment is that the Swytch bike conversion does not work on all bikes as the Swytch team continue to say, but then deny when you begin the process of buying one. They only work for tires sizes 28 or larger. Most road bikes in the US today are not compatible with the Swytch conversion kit. Please relay that to your readers.
I put my name down for one in Feb 2022 paid and selected what I wanted in June and expected delivery July. I am now told my wheel may be delivered by September and the rest within two months after that or maybe not. I think I will ask for my money back as this is very poor.