I noticed that too. Unfortunately, I don't know the reason. I expect to use the device in December. Since, on the one hand, the flight does not last 16 hours and, on the other hand, the device could be charged in-flight, the missing nine hours (on paper) are, in my opinion, negligible.
Yes, the device is compatible with your Sony headphones and your friend's AirPods. It can connect two Bluetooth devices at the same time so you can both listen to the film on the iPad.
If you have plugged the AirFly Pro into the cable, you must switch it on manually. It does not start automatically when the car is started. You must press the on/off button to activate it.
To adjust the volume of the earphones when using AirFly Pro, you can't do it directly on AirFly Pro itself, as it doesn't have a built-in volume control. Here are the steps you can follow:
- Control the volume on the source of the audio signal, i.e. the TV or device to which AirFly Pro is connected. Adjust the volume using the volume controls on that source.
- If your headphones, such as AirPods, have a built-in volume control (for example, the Digital Crown on AirPods Max), you can use these controls to adjust the volume.
AirFly Pro simply transmits the audio signal without volume control, so volume adjustments must be made either on the source or on the headphones themselves if they allow it.
Same answer as marcelkeller, I didn't notice any discrepancy at all. AirFly works with anything that has a jack (iPad, etc.). I tested it with an iPad Air 2 (which is rather old).
No. As far as I know, Apple offers a "Premium Package" that includes the adapter, but at a premium price ;-)
However, more modern aeroplanes have a normal stereo jack plug, so the adapter is not needed.