SHIPPING

We have warehouses located in the US, EU, Canada, and Australia; orders placed in other regions will be delivered via international shipping.

RETURNS

Free returns within 60 days of purchase date. Once we receive the item, a refund will be initiated immediately.

WARRANTY

All purchases from Avantree.com automatically comes with a 24-month warranty.

BULK DISCOUNTS

Discount prices will automatically
be reflected in the shopping cart

For same item orders:

• 5-9receive 5%   off order total
• 10-19receive 10% off order total
• 20+receive 15% off order total

How to Adjust the Volume of the PHA15?

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How to Adjust the Volume of the PHA15?

Go to the full support page of the related products: PHA15


  1. Double click the touch panel on the sound amplifier to adjust the volume. There are 5 volume levels from 1 to 5; you can control the volume of the left and right sound amplifier separately. If you adjust the right side’s volume, it will not affect the left side.
  2. Click the L/R button on the charging case to adjust the left/right sound amplifier’s volume .
  3. Long press for 2 seconds the L/R button of charging case, and the left/right sound amplifier will be set to Volume 1 .

Go to full product support page of [PHA15]