**Description** 1. Versatile 3-in-1 Audio Solution: Experience superior audio with our Bluetooth V5.4 adapter, functioning seamlessly as a receiver, transmitter, and FM tuner. Featuring a true Bluetooth 5.4 chip, it ensures stable and high-fidelity sound transmission. NFC quick pairing allows for effortless, tap-to-connect functionality, instantly linking your mobile device without manual setup. 2. Intelligent Memory & Remote Control: Equipped with a built-in memory chip and intelligent voice reminder function, this device automatically restores your previous mode, signal, or song after power loss. It provides warm voice prompts for various operation states. For added convenience, an infrared remote control is included, offering easy management of settings and playback from a distance. 3. Compact Design & Stable Placement: Crafted from high-quality ABS with soft silicone protective pads on the base, this adapter ensures stability and prevents slipping or scratching surfaces. 4. Extensive Connectivity & Extended Range: Boasting a rich arrange of input/output interfaces including AUX, RCA, Coaxial, Optical, USB, and TF card playback, this adapter supports a wide range of audio devices. The integrated 500mAh lithium battery provides portable power, while the robust signal transmission extends up to approximately 20 meters (65 feet) in barrier-free environments, offering freedom for your audio enjoyment. 5. Broad Device Compatibility: Designed for universal use, this audio adapter is compatible with a wide spectrum of devices including smartphones, tablets, PCs, TVs, wired speakers, amplifiers, projectors, and audio tuners. Its plug-and-play design requires no drivers, offering immediate audio enhancement for all your digital and analog devices. **Package list** 1. Bluetooth Audio Adapter