PHA15 Product Support

Product Overview - Sound Amplifier & Charging Case

1. Please choose the appropriate size eartips for you and assemble the eartips as shown below.

2. Hold the sound amplifier with your index finger and thumb.

Gently insert the sound amplifier into the ear canal, and then rotate it forward/backward until it’s secure in the ear and won’t fall out.

1. Open the charging case and take out the sound amplifier. The sound amplifier will automatically turn on
2. If the sound amplifier is turned off, long press the touch panel on the sound amplifier for 2 seconds, and it turn on.

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 .

The PHA15 defaults to Normal Mode on first time use.

Press and hold the touch panel on either sound amplifier for 2 seconds or click the M button on the charging box to cycle between "normal mode/outdoor mode/TV mode/conversation mode".

The PHA15 can be used as normal bluetooth earbuds.

1. Open the charging case, the sound amplifier will automatically enter Bluetooth pairing mode.
2. Open your phone’s settings and turn on the Bluetooth. Search for the Avantree PHA-15, and then click the circle icon to pair and connect.

Note:

1. Once connected to a Bluetooth device, you will hear the audio indicator "Dudo", and the sound amplifier will stop for 2-3S.

2.If the Bluetooth device is turned on, the sound amplifier will connect to Bluetooth automatically after taken out from charging case.

3.When using for calls or music, there is no sound amplifier function. After ending the call or music it will change to a sound amplifier automatically, but it will take about 7S.

4.When the PHA15 is connected via Bluetooth but there’s no music or calls, the sound amplifier function will be on. If the phone screen is locked, the sound amplifier will pause for 6S.

1. Put both the left sound amplifier and the right sound amplifier into the charging case.
2. Open the top cover of the charging case, then press and hold the M button for 5 seconds, the white light on the charging case and the 8 white lights on the sound amplifier will flash alternately for 3 seconds, and the sound amplifier will reset.

That’s probably because the Sound Amplifier earplug is not fit or sealed well in your ear canal.

1. Gently rotate the sound amplifier, so that the sealing and fitting of the sound amplifier eartips and your ear canal is better. This should deal with the whistle phenomenon.
2. The size of the eartips on the Sound Amplifier do not match your ear canal. Use a different size of eartips to improve the whistle phenomenon.

The case’s battery is probably dead. Put the sound amplifier into the charging case, close the top cover, and insert your type-c cord to charge the case.

Here are 3 possible reasons for this:

1. Low battery. Put the sound amplifier into the charging case to charge.
2. The volume is too low. Click to adjust the volume level.
3. The eartips are loose. Take the sound amplifier off then put them on again.

1. The volume is too low. Turn up the sound amplifier’s volume.
2. The Eartips or the microphone port are blocked by dust or earwax. Clean the sound port or microphone port
3. Blocked tubing/earbud. Clean or replace the ear wax guard as needed.
4. Your hearing may have changed. Contact your hearing professional.

Hearing loss differs among individuals. You can either visit an audiologist for a hearing test or take one online.

The results may classify your hearing as "mild," "moderate," or "severe" based on the volume of sounds you can hear, measured in Decibels (dB).

Here's a chart of the hearing loss scale from the 2021 World Health Organization Hearing Report:

Here's which degrees of hearing loss Avantree hearing amplifiers are suitable for:

PHA15 - Mild Hearing Loss, Moderate Hearing Loss.

PHA16 - Mild Hearing Loss, Moderate Hearing Loss.

Hearing loss differs among individuals. You can either visit an audiologist for a hearing test or take one online.

The results may classify your hearing as "mild," "moderate," or "severe" based on the volume of sounds you can hear, measured in Decibels (dB).

Here's a chart of the hearing loss scale from the 2021 World Health Organization Hearing Report:

Here's which degrees of hearing loss Avantree hearing amplifiers are suitable for:

PHA15 - Mild Hearing Loss, Moderate Hearing Loss.

PHA16 - Mild Hearing Loss, Moderate Hearing Loss.