The player account has three characteristics: energy, level, and experience, which will change in accordance with the following rules: each account has a maximum energy point of 20 and recovers 5 points every 6 hours; For 1 energy point consumption, the account will gain 1 experience point. The account level will be upgraded after a certain amount of experience points are accumulated. For the microphone, if 1 energy point of the microphone is consumed, it will gain 1 experience point growth. As you gain enough experience points, you can enhance your microphone level by consuming SGS/SNS.
In addition, 1 durability point consumption of the microphone will lead to the 1-point increase of its experience point(EXP).
Also, players can earn 1 account experience point (Exp.) by consuming a certain amount of SNS.