- Converts any sound device to Bluetooth: turn aging gear into a wireless powerhouse. Use with vintage home stereos, car audio, projectors, or other analog systems via RCA or 3.5 mm AUX. - Wide compatibility: streams from iOS, Android, or PC to Bluetooth headphones, speakers, or car stereo. - TF card playback: also plays music directly from a TF card, serving as a comprehensive Bluetooth audio adapter for all your listening needs. - Audio quality: low latency with minimal degradation, delivering crystal-clear, 3D surround-like hi-fi wireless sound. - One-touch 3D mode: quick, simple adjustment to suit jazz, rock, podcasts, or other genres for optimized listening. - Reliable signal: strong connection that penetrates walls and floors for uninterrupted music throughout your home. - Easy setup: plug into a non-Bluetooth speaker or stereo with a cable, pair with your phone, tablet, or PC, and you’re wireless in minutes. - Practical use scenarios: host backyard parties without missing a beat; clean the garage while listening to your favorite tracks; retrofit older cars or sound installations with Bluetooth audio. - Key specs and compatibility: RCA and 3.5 mm AUX inputs; TF card playback; supports iOS, Android, and PC devices.