I purchased this new on Amazon and used it a few times. Please consider this a used item. Gulikit Route Air Pro Black - This is an audio adapter/transmitter for sending audio from Nintendo Switch, PS4, PS5, etc. to Bluetooth earphones or headphones. - Dual pairing possible (e.g., two different earphones). - The Switch Bluetooth adapter is compatible with Switch, Switch Lite, PS4, PS5, and PCs with Win8 or later. - Route Air supports Bluetooth 5.0, 4.0, 3.0, 2.1, etc. Operation confirmed. Thank you.