nostr:npub14nx6wf8gpwcgjlzupn739avq8dy52xv7kywzewsvl6x7tx32cxdqqyjcyp 

Actually it’s easier to prove you right: see https://www.oralb.co.uk/en-gb/products/electric-toothbrushes/oral-b-io-series-10-electric-toothbrush#color=cosmic%20black🙃