Dual mode design: works as both a transmitter and a receiver, allowing non Bluetooth devices to stream audio to Bluetooth headphones or speakers. digital outputs: includes digital optical and coaxial outputs for compatibility with a wide range of audio systems and for resolution sound. An external booster antenna provides a wireless range of over 30 meters (100 feet). HiFi Bluetooth adapter: adds definition Bluetooth connectivity to vintage stereos, AV receivers, and powered speakers. Easy plug and play installation. Simple operation: no technical expertise required. Simply plug in the audio cable and press the power button to connect to your Bluetooth device. Compatible with TVs, headphones, speakers, and home stereo systems with various input/output options. Practical use scenarios: 1) Upgrade an old stereo or AV receiver by adding Bluetooth capability to stream music from a smartphone, tablet, or computer. 2) Connect TV audio to Bluetooth headphones or wireless speakers for private listening or multiroom setups. 3) Use with a desktop or laptop to send audio to a fidelity home stereo system for enhanced listening quality.