Hello. This is my favorite holiday.I always spend it brightly.I definitely give myself a gift. For my last birthday i bought myself a phone https://www.apple.com/mac/ .This day was remembered for a lifetime. By the way, you can also look at geadphones there one gift is good and two is better.I use the phone with pleasure. This is my sincere recommendation to you. Your sister will definitely like such a gift. What phone will you give?