In transmitter mode, 1Mii Bluetooth transmitter instantly transforms your old TV, PC, CD player, projector, or treadmill into Bluetooth-enabled devices. Pair effortlessly with Bluetooth headphones or speakers for smooth, hassle-free audio streamingperfect for private TV nights or movie marathons. In receiver mode, breathe new life into your old home stereo, car stereo, or wired speakers. Wirelessly stream audio from your phone and enjoy your favorite music with ease.