A:Answer Yes, that is correct. You should be able to get way more than 30 minutes of play time. When you charge them, put both earbuds inside of the case, then using the cable provided and your own adapter plug it into the wall. Do not remove the case from the charger until all 5 lights are illuminated. After that as long as you are replacing your earbuds in the case after each use you can go for days without needing to recharge them (of course that depends on your use).