JBL Tune 520BT - App not working : r/JBL

Elevate Your On-the-Go Listening Experience with JBL's Six New Upgraded Over-Ear and On-Ear Headphones

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My JBL Headphones App

JBL Tune 510BT: Wireless On-Ear Headphones with Purebass Sound - Black : Electronics

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User manual JBL Tune 520BT (English - 2 pages)

Can't get into new headphone settings in app - halp : r/JBL