This Swiitech 2-in-1 Bluetooth Transmitter Receiver features advanced Bluetooth 5.3 technology and Qualcomm chip to ensure a stable and fast connection. In transmit mode (TX), it can connect an airplane, TV or MP3 player, etc. to Bluetooth speakers or headphones; in receive mode (RX), it can receive signals from smartphones or other Bluetooth audio sources and transmit audio to non-Bluetooth wired speakers, headphones and other devices. With a transmission distance of up to 10 meters, it is the ideal companion for flight journeys. It automatically enters pairing mode when powering on to simplify the pairing process and comes with a reset button for re-pairing. It allows you to wirelessly stream audio from airplane entertainment systems, fitness equipment, gaming devices, TVs, or any device with a 3.5mm audio jack, and no longer be tethered to cables when using AirPods, earbuds, or wireless headphones. It is also recommended to turn off other nearby Bluetooth devices such as cell phones when pairing on an airplane. In TX mode, the transmitter can connect two stereo Bluetooth speakers or headphones at the same time; in RX mode, the receiver can connect two Bluetooth smartphones or computers at the same time