Bluetooth Version 5.0: This Bluetooth jack adapter uses the latest Bluetooth V5.0 technology, ensuring a more stable and faster Bluetooth signal. Enjoy seamless connectivity with minimal signal interference within 10 meters. Pocket-sized and portable, it's easy to take with you. No driver required, simply plug and play. 3-in-1 Transmitter/Receiver: This Bluetooth adapter features 2 modes, functioning as both a transmitter (red light) and a receiver (blue light). In transmitter mode: Connect non-Bluetooth devices like TVs, MP3/MP4 players, PCs, CD players, and iPods to a Bluetooth speaker or headset. In receiver mode: It's ideal for streaming music to your home or car audio system. Bluetooth name: T-10. High-Quality Audio & Low Latency: Featuring a built-in advanced CSR chip, both transmitter and receiver modes support aptX to retain more audio details, delivering near-lossless sound. This enables fast and stable transmission, processing, and decoding. Please note that aptX technology is available when both sending and receiving devices are supported. Quick Connection: Simply connect the device to a USB port for power (e.g., a USB charging port on a TV, computer, or mobile phone charger). The device will automatically power on, displaying a rapidly flashing red light to indicate wireless search mode. Easily connect your PC, computer, or other devices wirelessly to Bluetooth devices.