Headphones Buff

Each pair of headphones comes with a Buff to unlock in-game content faster. Currently, there are two types of Buffs available:

Buff Name	Description	Value
CD	Reduce the unlock time of Song Cases	From -5% to -25%
Song Point	Increase Song Points earning from each game	From +1 to +5

Each pair of headphones will receive a random Buff as well as a random Buff value within a specified range.