Versatile 3-in-1 Design: This Bluetooth adapter functions as a Bluetooth receiver, digital optical to analog audio converter, and USB flash drive player. Stream music wirelessly via Bluetooth, play audio from a USB flash drive, or convert digital optical audio to analog for your TV. | Hi-Fi Sound Quality: Equipped with Bluetooth 5.1 technology and an external antenna, this receiver minimizes signal interference, supporting Bluetooth connections within 10 meters. Enjoy Hi-Fi HD sound quality with minimal latency, ensuring clear and consistent wireless audio. | Multifunctional Interface: The Bluetooth 5.1 receiver features RCA, 3.5mm jacks, Digital Optical Out, and USB drive support for music playback. It enables wireless playback for non-Bluetooth stereos through 3.5mm or RCA interfaces. The USB drive supports WAV, WMA, APE, FLAC, and MP3 formats for easy plug-and-play convenience. | Simple Operation: Switch modes effortlessly by turning on the device and connecting through the appropriate cable. The adapter connects to Bluetooth devices and USB drives simultaneously, with a single button to toggle modes. A blue light indicates Bluetooth mode, while a red light indicates USB mode. The knob allows for power switching and volume adjustment. | Wide Compatibility: This 3.5mm Bluetooth audio adapter converts non-Bluetooth devices for wireless connections, perfect for car radios and old stereos. Compatible with most TVs featuring optical and AUX audio jacks, it allows you to enjoy music anytime and anywhere.