2023 Airfly Duo still sealed in original box. This product connects two pairs of wireless headphones to one headphone jack, so if you're sitting on an airplane with your partner or friend and you want to watch the same movie, you can leverage this device. Full description from the Airfly website is below: Bluetooth transmitter and receiver for wireless audio sharing Compatible with wireless headphones or earbuds Ideal for use with in-flight entertainment systems Rechargeable battery with 22+ hours of use Compact and lightweight design for portability Bluetooth wireless audio transmitter: The AirFly is a portable Bluetooth audio transmitter that connects your wireless headphones or earbuds to wired audio jacks, such as those found on airplanes, gym equipment, and more Battery life: The device features a built-in battery that lasts up to 22+ hours and recharges via USB-C Easy to use: The AirFly Pro is easy to use and plugs directly into your wall electrical outlet