AGM is an up-and-coming company, which specializes in rugged and durable handsets that you can take anywhere. Still, "rugged" does not need to mean "underpowered" and AGM understands this, which is why it has a few models in its portfolio, ranging from the budget-friendly AGM A9 to the flagship-grade AGM X3.
Both of these phones have speakers tuned by JBL, and they sound loud, clear, and powerful compared to other handsets. Now, the companies have upgraded this partnership to co-branding the AGM phones, starting with the mid-range A9, which will now be known as the AGM A9 JBL.