Speaker Booster Amp Metal Bass

Boost the volume of your bluetooth speakers!
If you like listening to music on high volume, but speakers are not loud enough, then this app may help you make the volume louder.
Just control standard volume and boost as you need. Create awesome music experiences through high definition Bass Boosting and EQ Amplification. Special, for the equalizer, we have preloaded Metal Bass preset.
***Notices:
• Please be careful with your hearing and devices. We are not responsible for any damages.
***Information about the auto-renewal of subscription:
• Payment will be charged to iTunes Account at confirmation of purchase
• Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period
• Account will be charged for renewal within 24-hours prior to the end of the current period. The cost depends on the selected plan
• Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase
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Term of Service:
https://sites.google.com/view/tranvanhieund/term-of-use