Adam Elements Eve II Bluetooth 2-in-1 Transmitter & Receiver 3.5mmWith Bluetooth 5. 3 technology that supports bidirectional TX (send) RX (receive) modes, the EVE II can connect devices without Bluetooth via a quick switch and play streamed media from your mobile device or laptop. The foldable dual 3. 5 mm AUX plug is compatible with the airline entertainment system to pair it with your wireless earphones headphones via Bluetooth, so you don't have to use shared earphones for better personal hygiene. Easily pair EVE