Apple might use optical audio transmission in an upcoming VR headset.
The limitations of Bluetooth include a delay in sending the audio signal from the device to the headphone.
Many companies are exploring alternatives to Bluetooth for audio.
It seems like Bluetooth is everywhere, but it might not be the best way to get sound to your virtual reality (VR) headset.
A new Apple patent suggests the company could use an optical audio transmission from VR headsets to AirPods. Optical audio systems use fiber optic cables and laser light to transmit digital audio signals between two devices. Apple is among the companies exploring alternatives to Bluetooth for audio.