Dual-Functionality: Switch between Receiver (RX) and Transmitter (TX) modes effortlessly, adapting to any scenarioEasy Setup: Pairing is a breeze with a simple 3 second button press and device selectionEnhanced Connectivity: Turn non-Bluetooth devices like older speakers or car stereos into wireless receivers (RX mode), or immerse yourself without disturbing others by transmitting (TX mode) to headphones or speakersGreat Flying Companion: Connect the Bluetooth 5.1 Transmitter in TX mode to transmit audio signals to Bluetooth-enabled wireless devices on airplanes or non-Bluetooth-enabled televisions to make your journey entertainment more comfortableLong-Lasting Battery: Powered by a 140 mAh polymer battery, senseless and lightweight, enjoy up to 5 hours of continuous use on a single charge (1.5 hours charging time). Come with a charging cable, you also can charge while workingHigh-Fidelity Sound: Built-in HD noise-canceling microphone for clear calls and audio transmissionDurable Design: Features a flexible connector suitable for various environmentsExtended Range: Enjoy reliable Bluetooth connectivity within a 10 meter transmission distance