Supports both TX and RX modes. Simply connect it to a non-Bluetooth device, like a plane or car stereo, to enjoy Bluetooth wireless sound. It is suitable for use at home, in the car or on a plane. Designed with a compact size to save space, this device features a small and portable design that makes it an ideal choice for travel and daily use. It easily fits into the pocket or travel bag, providing quick access to wireless audio anytime, anywhere.