Wireless is becoming the norm of everything, especially for audio playback devices. Headphones are easier to carry when there are no cables attached to them. However, it is also really easy to lose one of them if they are not attached together. Therefore, it would be nice if the user has the option to choose whether they want cables or they don’t.
The case where the user store their headphones is also a charging station. the case is about 3.5 x 4.5 x 2” in size.