Wider CompatibilityBluetooth dual-core upgrade, equipped with high-performance DSP and Bluetooth 5.3 chip, clear treble, subdued bass, master tuning. We come with ports for 3.5 mm AUX/RCA/optical and coaxial outputs, support for USB flash drives, and a 6.5 mm microphone connector, plug and sing, powerful compatibility to meet your daily music experience
Note: Optical coaxial is used in transmitter mode
Extended Long Range: The Bluetooth adapter uses a dual-antenna design to achieve a line-of-sight range of up to 160 feet (50 m) outdoors and 80-110 feet (25 m-35 m) indoors.
Note: Operating range may be affected by physical obstacles such as Wi-Fi routers, wireless TV adapters, walls, metal barriers, etc. and also depends on the receiving device
Trustworthy After-sales Service: Once purchased, you are our valued customer. If you have any questions or need technical help, please contact us through Amazon message or the contact information in the user manual