볼륨 부스트: 사운드 앰프

Speaker Volume is a sound amplifier to increase volume of your video to 1000%.
Do you have favorite videos? Are you bearing low-quality sound recorder？
Do you want to have a high quality volume speaker? Do you want to adjust the bass volume?
Speaker Volume will boost your files volume to 1000% with high quality, and bass boost your music, allowing you listen to music offline!
Subscription plans:
·Monthly $9.99, auto-renew
·Yearly $29.99, auto-renew
Subscription information:
·Payment will be charged to iTunes account at confirmation of purchase.
·Subscription automatically renews unless auto-renew is disabled at least 24 hours before the end of the current period.
·Account will be charged for renewal within 24-hour prior to the end of the current period, and identify the cost of renewal.
·Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase.
·Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable.
Terms of Use https://sites.google.com/view/speakervolume-terms-of-use/home
Privacy Policy https://sites.google.com/view/speakervolume-privacy-policy/home