2.4G No Delay Audio Transmitter: Wireless Transmitter-Receiver is designed with metal case, drop-proof and collision-proof, RCA and 3.5mm connectors provide more compatibility, which can easily connect to TV, DVD and transmit audio wirelessly to active stereo, soundbar and so on. 50M/165Ft Long Range Transmission: Wireless transmitter receiver use 2.4GHz technology and external antennas, higher transmission efficiency and more stable transmission, outdoor unobstructed transmission distance up to 50m (165ft), indoor transmission distance is 30-50m (100-165ft). You can enjoy music throughout the room without worrying about audio loss or interruption. (Note: Obstacles and routers will affect the transmission distance) Plug and Play: 2.4G wireless audio receiver and transmitter come with a USB power cable, connect the transmitter to the stereo and the receiver to the stereo, connect the power supply and the device will be automatically connected and ready for normal use.Easily solve the problem of messy wiring when connecting speakers. (Note: Transmit audio only, not video) HD Sound Quality: The wireless audio transmitter adopts 2.4G transmission technology with low latency and good sound quality, it can transmits 2.0ch analog stereo audio signals from RCAs and 3.5 mm audio jacks over long distances to the receiver, transmits clear, stable, noise-free and audio synchronized sound. Receiver can drive headphones, powerful anti-interference technology, enjoy excellent sound quality whether at home or in the office. Wireless Audio Adapte: wireless transmitter and receiver automatically connect when turned on, allowing 2.0ch analog stereo audio signals to be transmitted over long distances to the receiver for listening. Both the transmitter and receiver come with sound adjustment knobs that support two-way volume control.Commonly used in home audio and video, education, square broadcasting, stage performances and concerts and other scenes.