Wh-why are they rechargeable, OP? What is their use?
I was gonna make a joke but the real answer is probably worse than anything I could come up with: an engineer thinks maybe people would use their phones more (?) if the interaction was more natural, like when you interact with other people by touching them (?), so they developed synthetic flesh so your smartphone can respond to tactile stimulation such as tickling and caressing
The most exciting things that’s ever happened at my work is that we got 10 beetle larvae that were seized at the border from a beetle smuggler (?) and we don’t know what species they are and now we have to wait many months for them to pupate. Second most exciting thing is a lizard came in with a plant shipment from florida (he lives with me now his name is guacamole). Third most thing was the same but it was a bird that got loose in the building and we had to catch it with a net and release it outside. Fourth most was patton oswalt came and i got a picture with him