The earphones are sky blue and the charging case is black. They work without any problems. Both were purchased on Mercari. According to the official website, the earphones can play for up to 9 hours on a single charge, but due to battery degradation, they often only last for about an hour and a half. I reluctantly bought a new pair, so I am selling these. I have used them for about six months, so there are some minor scratches. Price reductions are welcome! I look forward to your purchase if you understand the condition.