A:AnswerThis product does require charging however it can be done to gather with the iPhone during your rest hours at night or whenever you get a chance
A:AnswerThere seems to be no plans to make any other color model than black at this point with the iPhone 13 around the corner it seems very unlikely to be a pink sand or salmon color
A:AnswerI’m not sure if this answers your questions but it’s equivalent to 2 1/2 more batteries as well as a blue light glasses is probably recommended according to Dr. Futch