A Dual “Y” Adapter Cable for headphones or microphones allows you to connect two devices to a single jack or port. This can be useful if you want to use two headphones or microphones at the same time, or if you want to split the audio from a single device into two separate outputs. The “Y” shape of the cable allows you to connect two devices to a single input, while the coiled cord allows for some flexibility in positioning the devices. These cables are available in both mono and stereo versions, depending on your needs.