General description This multifunctional 2-in-1 Wireless Transmitter Receiver with Coaxial, Optical, 3.5mm AUX, and U disk input offers a transformative solution to make your home entertainment system wireless. Perfect for converting wired audio devices into Bluetooth-enabled devices, you can conveniently connect through your home theater or transmit music to your Bluetooth speaker without disturbing those around you. Embrace an enhanced audio experience with our Mini Bluetooth 5.3 Audio Adapter that offers a longer transmission distance and a more reliable connection. Utilizing special circuitry and an external gain antenna, this transmitter receiver expands the wireless range up to 100 feet. Technical specifications Bluetooth version: 5.3 Wireless range: Up to 100 feet Inputs: Coaxial, Optical, 3.5mm AUX, USB Outputs: AUX Microphone connector: 6.5mm Remote control range: 5-8m Color: Black Material: ABS Measurement allowed error: +/- 1-3cm Compatibility and accessories Compatible