1. Versatile Karaoke Companion: The Bluetooth-Compatiblereceiver is perfect for karaoke, singing practice, and live streaming. It receives music from Bluetooth-Compatible devices like smartphones and computers, and then outputs it through the AUX interface to speakers or other audio equipment. 2. Adjustable Vocal Modes: This wireless audio adapter offers three vocal modes: 1. Remove all vocals for pure background music, ideal for experienced singers. 2.Retain 25% vocals to help keep rhythm and pitch. 3. Play 100% vocals and background music for listening and learning. 3. Built-in Rechargeable Battery: The Bluetooth-Compatible aux adapter features a built-in rechargeable battery that provides up to 10 hours of continuous use. This audio receiver is perfect for portable, outdoor use, ensuring you can enjoy your music anywhere. 4. Enhanced Singing Experience: With the ability to adjust the song's vocals proportionally, this music receiver allows you to switch modes based on your needs, pr