The speaker on the AirPods Pro 2 charging case can't play music but is used for alerts, charging sounds, and the "Find My" feature, allowing you to locate the case with loud beeps; you control the actual audio (music, calls) through the AirPods earbuds themselves using stem presses (play/pause, skip, Siri, volume) or Control Center. To use the case speaker for Find My, open the Find My app on your iPhone/iPad and select "Play Sound" for the case, and you can enable/disable case sounds in Settings > Bluetooth > your AirPods > Charging Case Sounds, note Apple Support https://support.apple.com/guide/airpods/which-airpods-do-i-have-dev1ffaae000/web, Apple Support https://support.apple.com/en-au/102628, Apple Discussions https://discussions.apple.com/thread/255208727, YouTube.
A MORE CAPABLE CASE— Keep track of AirPods Pro 2 with Precision Finding and a built-in speaker.* A lanyard loop helps keep your AirPods Pro 2 close. Charge with an Apple Watch or MagSafe Charger, USB-C Charge Cable, or Qi-certified charger.
Use Siri on your HomePod, iPhone, iPad, Apple Watch, AirPods, or CarPlay to send an Intercom message. Say something like: "Hey Siri, intercom 'It's time to wake up. '"
CREATING AN INTERCOM GROUP
To create a group, press the media and mute buttons for 2 seconds on all devices you wish to connect, one at a time. That's it! You can now communicate in an intercom group using your AirPods.
Use Live Listen with AirPods
On your Android device, open the Settings app. Tap Connected devices. Next to your device, tap Settings . Tap Audio switch.
You can play a sound on your AirPods to help you locate them if they're out of their case. If you have AirPods 4 (ANC), AirPods Pro 2, or AirPods Pro 3, you can also play a sound on the charging case. iPhone or iPad: Go to the Find My app , tap Devices, select your AirPods, then tap Play Sound.
Under Press and Hold AirPods, tap Left or Right, then make sure that Listening Mode is selected. Select the two or three listening modes that you want to use with the press-and-hold action. If both AirPods are set to change listening modes, a change to the press-and-hold action settings on one AirPod applies to both.
Troubleshooting Common Issues with the AirPods Pro 2nd Generation
This small speaker emits a sound to help you locate your AirPods Pro 2 case if it's misplaced.
If the malfunctioning AirPod plays sound, place both AirPods in the charging case, let them charge for 30 seconds, open the charging case near your iPhone or iPad, and test to see if both are now working properly. If an AirPod still isn't working, reset your AirPods.
Press and hold the force sensor on the stem of an AirPod until a chime plays. When you're wearing both AirPods, press and hold the force sensor on either AirPod to switch between Active Noise Cancellation, Transparency mode, and Off.
Select Start > Settings > Sound. In the Output section, select the audio device you're using (e.g., your speakers or headphones).
Adjust audio settings on iPhone
Here's how:
You can use Siri or the Home app to send an Intercom message. You can even send and receive Intercom messages with your AirPods or compatible Beats headphones that are connected to your iPhone, iPad, or Apple Watch.
Verify that your AirPods are selected as the input device in your sound settings. Open your device's settings and head to the Bluetooth settings, select your AirPods, and make sure the microphone is set to either 'Always Left AirPod' or 'Always Right AirPod' if one is working better than the other.